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I) fill in each gap with one suitable compound noun in the box

bullfighting ice skating bird-watching weight-lifing
water-fetching air-conditioning zebra crossing

window-shopping

1, My father likes______.He spends lots of hours watching the birds

2, In_______,a traditional public entertainment in Spain,bull are fought and usually killed in a bullring

3, _______is the activiti of lifting heavy objects as a sport or as exercise

4, She enjoys looking at goods displayed in shop windows,so she goes______very often

5, ______is the activity of skating on ice

6, In the________contest,one person from each team has to run to the river to get the water

7, _____is a system that mades the air inside a building,room or vehicle cool

8, Pedestrians must cross the street on_____

II) Put the verb into the correct form:present simple or past simple,active or passive

1, It's a big factory.Five hundred people______(employ) there

2, Water_______(cover) most of the Earth's surface

3, The letter_______(post) a week ago and it________(arrive) yesterday

4, The boat______(sink) quickly but fortunately everybody________(rescue)

5, Ron's parents_______(die) when he was very young.he and his sister __________(bring) up by their grandparents

6,The gate______(lock) at 6.30 pm everyday

7,Sue ______(bear) in London but she_________(grow) up in the north of England

8, We _______(not/play) football yesterday ofternoon.The match________(cancel)

9, Originally the book_________(write) in Spanish and a few years ago it_________(translate) into English

10, I saw an accident last night.Somebody_________(call) an ambulance but nobody_________(injure) so the ambulance_________(not/need)

III) fill in the blank with one suitable preposition

1, My mother is very keen______growing roses

2, John is extremely fond__________music

3, We thanked them______all their help

4, Are you interested______a harvest festival?

5, Wine is made_______grapes

6, How many members participated________the rice-cooking contest?

7, The children are really looking forward_________Tet holiday

8, Santa Claus is based________the description of Saint Nicholas

9, They have to separate the rice________the husk and cook the rice

1
4 tháng 6 2020

I) fill in each gap with one suitable compound noun in the box

bullfighting ice skating bird-watching weight-lifing
water-fetching air-conditioning zebra crossing

window-shopping

1, My father likes bird-watching .He spends lots of hours watching the birds

2, In bullfighting ,a traditional public entertainment in Spain,bull are fought and usually killed in a bullring

3, weight-lifting is the activiti of lifting heavy objects as a sport or as exercise

4, She enjoys looking at goods displayed in shop windows,so she goes window-shopping very often

5, ice-skating is the activity of skating on ice

6, In the water-fetching contest,one person from each team has to run to the river to get the water

7, air-conditioning is a system that mades the air inside a building,room or vehicle cool

8, Pedestrians must cross the street on zebra-crossing

II) Put the verb into the correct form:present simple or past simple,active or passive

1, It's a big factory.Five hundred people are employed (employ) there

2, Water is covered (cover) most of the Earth's surface

3, The letter was posted (post) a week ago and it arrived (arrive) yesterday

4, The boat sank (sink) quickly but fortunately everybody was rescued (rescue)

5, Ron's parents died (die) when he was very young.he and his sister was brought (bring) up by their grandparents

6,The gate is locked (lock) at 6.30 pm everyday

7,Sue was born (bear) in London but she grew (grow) up in the north of England

8, We didn't play (not/play) football yesterday ofternoon.The match was canceled (cancel)

9, Originally the book was writen (write) in Spanish and a few years ago it was translated (translate) into English

10, I saw an accident last night.Somebody called (call) an ambulance but nobody was injured (injure) so the ambulance wasn't needed (not/need)

III) fill in the blank with one suitable preposition

1, My mother is very keen on growing roses

2, John is extremely fond of music

3, We thanked them about all their help

4, Are you interested in a harvest festival?

5, Wine is made from grapes

6, How many members participated in the rice-cooking contest?

7, The children are really looking forward for Tet holiday

8, Santa Claus is based on the description of Saint Nicholas

9, They have to separate the rice from the husk and cook the rice

Put the verb into the correct form ,present simple or past simple, active or passive.1. It’s a factory. Five hundred people .........................................( employ) there. 2. Water ......................(cover) most of the Earth’s surface.3. Most of the Earth’s surface ..............................(cover)  by water. 4.The park gates ......................( lock) at 6.30p.m every evening. 5. The letter .......................(post) a week ago and it ..................... (arrive)...
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Put the verb into the correct form ,present simple or past simple, active or passive.

1. It’s a factory. Five hundred people .........................................( employ) there. 

2. Water ......................(cover) most of the Earth’s surface.

3. Most of the Earth’s surface ..............................(cover)  by water. 

4.The park gates ......................( lock) at 6.30p.m every evening. 

5. The letter .......................(post) a week ago and it ..................... (arrive) yesterday .

6.The boat ..........................( sink) quickly but fortunately everybody ................ ( rescue)

7.Ron’s parents .................................( die) when he was very young .He and his sister .......................(bring) up by their grandparents.

8.I was born in London but I ..............................( grow) up in the north of England 

9.While I was on holiday, my camera ..............................( disappear) from my hotel room.

10.While I was on holiday, my camera.............................( steal) from my hotel room

 

1
14 tháng 9 2021
1. It's a big factory. Five hundred people are employed there. 
2. Water covers most of the Earth's surface. 
3. Most of the Earth's surface is covered by water. 
4. The park gates are locked at 6.30 p.m. every evening. 
5. The letter was posted a week ago and it arrived yesterday. 
6. The boat sank quickly but fortunately everybody was rescued. 
7. Ron's parents died when he was very young. He and his sister were brought up by their grandparents. 
8. I was born in London but I grew up in the north of England. 
9. While I was on holiday, my camera was stolen from my hotel room. 
10. While I was on holiday, my camera disappeared from my hotel room.
VOCABULARY AND GRAMMAR I. Match a word in column A with its description in column B, writing the answer in each blank. Answer A B ______ 1. A thunderstorm A. It is created when the surface layer of the ground collapses. It varies in size and are found all over the world. It is an area of ground that has no natural external surface drainage. When it rains, all of the water stays inside it and typically drains into the subsurface. It can vary from a few feet to hundreds of acres and from less...
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VOCABULARY AND GRAMMAR I. Match a word in column A with its description in column B, writing the answer in each blank. Answer A B ______ 1. A thunderstorm A. It is created when the surface layer of the ground collapses. It varies in size and are found all over the world. It is an area of ground that has no natural external surface drainage. When it rains, all of the water stays inside it and typically drains into the subsurface. It can vary from a few feet to hundreds of acres and from less than 1 to more than 100 feet deep. ______ 2. A tornado B. The Earth has a crust under the oceans and the land that we live on. This crust made of massive areas of flat rock called tectonic plates, which float on the Earth’s mantle, the inside layer of the Earth. When the plates move slowly together, this movement forces energy through the crusts to the Earth’s surface. The energy causes the Earth to tremble and shake. ______ 3. A hurricane C. It is a very bright flash of electricity that happens in a thunderstorm. It is actually a spark that crosses the gap between two clouds or between a cloud and the Earth. It carries an enormous charge of electricity. Trees are burned, metal can be melted and people can be killed. ______ 4. An earthquake D. It is caused by earthquakes at sea. It forms when energy from an earthquake displace hundreds of cubic kilometers of water from the seabed. Large waves begin moving through the ocean from their epicenters. When it reaches shallow water near coastal areas, it increases in height. The sign comes before it strikes when the waterline suddenly retreats, exposing hundreds of meters of beach and seabed. ______ 5. A volcano E. It is a very violent windstorm. The air is concentrated and whirls up rapidly. It is grey in colour and looks like an elephant’s trunk swaying down from the clouds to touch the ground with its tip. ______ 6. A tsunami F. It is a hill or mountain formed when molten material or lave from the inside of the Earth is forced through the Earth’s crust by gases. It can produce vast clouds of very fine volcanic dust which looks like smoke. ______ 7. A sinkhole G. It is a storm where you hear thunder and see lightning. There is usually heavy rain. It is an electric storm. ______ 8. Lightning H. It is the most violent storm known on Earth. It is a tropical storm. It forms at sea and causes dangerous, stormy seas. It can reach the land and destroy buildings and trees. It can blow high waves onto the land and cause flooding. II. Complete each sentences with the correct word from the box. drought flood hurricane landslide tornado 1. When there is a ___________, a lot of water covers an area where there usually isn’t water. 2. A ___________ refers to a long time without rain. 3. When there is a ______________, a lot of rocks and earth fall down a hill. 4. A____________ is a storm with a lot of wind that moves over water. 5. A____________ is a storm in which the air moves very quickly in a circle. III. Use the verbs in the box in the correct form to complete the sentences. bury evacuate rage take recover scatter provide suffer 1. The government _____________ health and other services to the affected regions. 2. Action were _____________ to limit the effects of the floods in Quang Ninh. 3. The Red Cross helped homeless families to ____________ from the disaster through the project. 4. The majority of concerned areas have ___________ from cholera epidemics after the floods and landslides in Central America. 5. Early September, mudslides caused by heavy rains _____________ an entire village of 480 inhabitants. 6. Thousands of villagers ____________ from flood-prone areas after the warnings from the weather bureau. 7. Tiny particles of dust, smoke, salt or pollution droplets that ___________ through the air to cause haze. 8. The fires ____________ for more than a week in the southern region of Chile, which has been hit by a severe drought. MONG MỌI NGƯỜI GIÚP ĐỠ

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1. She (wash) her clothes every Sunday. 2. She (study) English every day. 3. He (want) to become a teacher. 4. She usually (walk) to school. 5. What time Mary usually (get) up every morning? 6. She (not wash) her clothes every weekend. 7. they (be) teachers? 8. It (not be) often cold in summer. 9. Tom usually (walk) to school. 10. He (be) a student. Exercise 2: Put the verb in the present simple tense. 1. I (be) sixteen years old. 2. They (be) very friendly. 3. Every week she...
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1. She (wash) her clothes every Sunday. 2. She (study) English every day. 3. He (want) to become a teacher. 4. She usually (walk) to school. 5. What time Mary usually (get) up every morning? 6. She (not wash) her clothes every weekend. 7. they (be) teachers? 8. It (not be) often cold in summer. 9. Tom usually (walk) to school. 10. He (be) a student. Exercise 2: Put the verb in the present simple tense. 1. I (be) sixteen years old. 2. They (be) very friendly. 3. Every week she (go) to visit her parents. 4. What time your father usually (get) up? 5. We (not go) to school on Sundays. 6. We (not be) very lazy. 7. The Earth (go) around the Sun. 8. I (visit) my parents very often. 9. he (go) to school every day? 10. she (come) from Japanese? Exercise 3: Give the correct tense form of the verbs. 1. They often (go) to school on foot. 2. She (go) to the park everyday. 3. Bad students never (work) hard. 4. It often (rain) in the summer. 5. He usually (water) the trees in the morning. 6. She always (cook) in the morning. 7. I always (meet) him on the corner of this street. 8. He (not do) morning exercises regularly. 9. Water (boil) at 100 degrees centigrade. 10. You (be) a good studen
1
20 tháng 2 2020

1. She (wash)washes her clothes every Sunday.

2. She (study)studies English every day.

3. He (want)wants to become a teacher.

4. She usually (walk) walksto school.

5. What time Mary usually (get)does Mary usually get up every morning?

6. She (not wash)doesn't wash her clothes every weekend.

7. they (be)Are they teachers?

8. It (not be)isn't often cold in summer.

9. Tom usually (walk)walks to school.

10. He (be)is a student.

Exercise 2: Put the verb in the present simple tense.

1. I (be)am sixteen years old.

2. They (be)are very friendly.

3. Every week she (go) goesto visit her parents.

4. What time your father usually (get)does your father usually get up?

5. We (not go)don't go to school on Sundays.

6. We (not be)aren't very lazy.

7. The Earth (go)goes around the Sun.

8. I (visit)visit my parents very often.

9. he (go) Does he goto school every day?

10. she (come)Does she come from Japanese?

Exercise 3: Give the correct tense form of the verbs.

1. They often (go)go to school on foot.

2. She (go)goes to the park everyday.

3. Bad students never (work)work hard.

4. It often (rain)rains in the summer.

5. He usually (water)waters the trees in the morning.

6. She always (cook)cooks in the morning.

7. I always (meet)meet him on the corner of this street.

8. He (not do)doesn't do morning exercises regularly.

9. Water (boil)boils at 100 degrees centigrade.

10. You (be)are a good student

Read the passage below and decide whether the statements are TRUE or FALSE?This report shows how the rice-cooking festival was held. The festival was held in the communal house yard about one kilometer away from a river. There were three competitions: water-fetching, fire-making and rice-cooking. The festival lasted one day. In the water-fetching contest one person from each team had to go to the river to get the water. In the fire-making contest two team members had to make a fire in the...
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Read the passage below and decide whether the statements are TRUE or FALSE?

This report shows how the rice-cooking festival was held. The festival was held in the communal house yard about one kilometer away from a river. There were three competitions: water-fetching, fire-making and rice-cooking. The festival lasted one day. In the water-fetching contest one person from each team had to go to the river to get the water. In the fire-making contest two team members had to make a fire in the quickest way. They tried to rub pieces of wood together to make the fire. Members from each team took part in the rice-cooking contest. They had to separate the rice from the husk and then cook the rice. After the three contests, all the points were counted and the Thon Trieu group won the grand prize. The festival was wonderful.

Question: In the water-fetching contest one person from each team had to go to the river to get the water.

A. True

B. False

1
10 tháng 1 2018

Đáp án: A

Giải thích: Dựa vào câu: “In the water-fetching contest one person from each team had to go to the river to get the water.”.

Dịch: Trong cuộc thi lấy nước, một người từ mỗi đội phải đi ra sông lấy nước

18 tháng 7 2018

Fill in each numbered blank with ONE suitable word to complete the passage.

When you hear the word " bank ", what do you think of ? A ....place...(1) to put money ? The land on the edge of a river ? To depend on something or someone ? If you choose any of .....these...(2) things, you are right. Why ? Because words often have ....more....(3) than one meaning. The tricky part is figuring out .....which...(4) meaning is appropriate. Choosing the correct meaning of a word depends on ...two....(5) things. First, it depends on the words and ...sentences....(6) surrounding your particular word. The other words and sentences give you context clues. ......secondly...(7), the meaning depends on how the words is .......used....(8) in the sentence. It is a noun, a verb, ....an....(9) adjective or part of a phrase ? Knowing the word's part of speech will ....help...(10) discover the word's precise meaning.

18 tháng 7 2018

(1) place

(2) these

(3) more

(4) which

(5) two

(6) sentences

(7) Second

(8) used

(9) an

(10) help

21 tháng 7 2020

Complete the sentences with the adjectives from the box.

generous peaceful optimistic quiet inconvenient
fresh brave exciting vast skillful envious

1. It’s ____exciting ________ to see a kite flying high in the sky.
2. It was very ____quiet________ there; you could just hear the wind moving in the trees.
3. I love the ____vast ________ open spaces and the ___fresh_________ air in the countryside.
4. The villagers often find it _____inconvenient_______ to get into town due to the lack of public transport.
5. People in rural areas are more ___optimistic

________ than their city counterparts.
6. I’m so __envious__________ of you getting such an exciting holiday.
7. Billy is clearly a __generous__________ person. He contributed lots of money to charity.
8. It was very _brave___________ of him to jump into the river to save a drowning child,.
9. Most of Mongolian people are _____skillful_______ at riding a horse.
10. Life in the countryside is more _ peaceful ___________ and healthier.

Fill in each numbered blank with ONE suitable word. Write your answer in the numbered box. In Canada and the United States, (1) _________ of the most popular days in the year is Halloween. Halloween is on October 31st. It’s a day (2) _________ some people dress up in strange or unusual costumes. For example, they may dress up to look (3) _________ an animal, a person from a book or movie or a famous person from history. In some places, children go to school in (4) _________ Halloween...
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Fill in each numbered blank with ONE suitable word. Write your answer in the numbered box.

In Canada and the United States, (1) _________ of the most popular days in the year is Halloween. Halloween is on October 31st. It’s a day (2) _________ some people dress up in strange or unusual costumes. For example, they may dress up to look (3) _________ an animal, a person from a book or movie or a famous person from history. In some places, children go to school in (4) _________ Halloween costumes. After dark, many young children (5) _________ on their costumes and visit their neighbors. They knock on the (6) _________ and shout “Trick or treat!”. Then the neighbors (7) _________ them some candy, and the children go on to the (8) _________ house. Adults also enjoy dressing up for Halloween. (9) _________ are usually Halloween parties in the evening and usually there is a prize for the best or (10) _________ unusual costume.

2
21 tháng 9 2017

Fill in each numbered blank with ONE suitable word. Write your answer in the numbered box.

In Canada and the United States, (1) _____one____ of the most popular days in the year is Halloween. Halloween is on October 31st. It’s a day (2) ___when______ some people dress up in strange or unusual costumes. For example, they may dress up to look (3) _____like____ an animal, a person from a book or movie or a famous person from history. In some places, children go to school in (4) ___their______ Halloween costumes. After dark, many young children (5) ______put___ on their costumes and visit their neighbors. They knock on the (6) ___door______ and shout “Trick or treat!”. Then the neighbors (7) __gives_______ them some candy, and the children go on to the (8) __next_______ house. Adults also enjoy dressing up for Halloween. (9) ___there______ are usually Halloween parties in the evening and usually there is a prize for the best or (10) ____worst_____ unusual costume.

21 tháng 9 2017

Fill in each numbered blank with ONE suitable word. Write your answer in the numbered box.

In Canada and the United States, (1) ____one_____ of the most popular days in the year is Halloween. Halloween is on October 31st. It’s a day (2) _____that____ some people dress up in strange or unusual costumes. For example, they may dress up to look (3) _____like____ an animal, a person from a book or movie or a famous person from history. In some places, children go to school in (4) _____their____ Halloween costumes. After dark, many young children (5) ___put______ on their costumes and visit their neighbors. They knock on the (6) ____door_____ and shout “Trick or treat!”. Then the neighbors (7) _____give____ them some candy, and the children go on to the (8) ____another_____ house. Adults also enjoy dressing up for Halloween. (9) _____there____ are usually Halloween parties in the evening and usually there is a prize for the best or (10) ____having_____ unusual costume.

I/ Match A and B A B 1. You have a hiccup 2. He touched a hot burner on the stove 3.He walked barefoot on some glass 4.You shouldn't eat too much so quickly 5. He had a toothache 6.She sneezed 7. It was so smoky 8. He missed a step walking downstairs a. He burned his finger b. Because of the dust in the room c. You may have a stomachache d. That he could not stop coughing e.Take a drink of water f. He...
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I/ Match A and B

A B

1. You have a hiccup

2. He touched a hot burner on the stove

3.He walked barefoot on some glass

4.You shouldn't eat too much so quickly

5. He had a toothache

6.She sneezed

7. It was so smoky

8. He missed a step walking downstairs

a. He burned his finger

b. Because of the dust in the room

c. You may have a stomachache

d. That he could not stop coughing

e.Take a drink of water

f. He went to the dentist

g. He cut his foot

h.He twisted his ankle

1........... 2........... 3............ 4............. 5............

6........... 7............. 8.............

II/ Fill in the blank with a suitable word

1. It was quite a bad cut and it was bleeding a lot, so I put on a ...........

2. He was ten kilos overweight and was advised to go on a ..............

3. You've eaten too much; that's why you have a pain in your .............

4. If you want to stay fit, don't eat too much and take plenty of ............ every day.

5. He .......... out at the gym to keep fit.

6. I have to go to the............ .I've got two fillings done.

7. I went to the doctor and she prescribed some ............

8. He coughs and sneezes a lot. I think he has a .............

III/ Fill in the gap with the suitable word. The intitial letter has been given for you

1. If you want a visa, you must book a r.......... ticket.

2. He has the flu so he has to stay at home on s........... leave.

3. When someone is leaving, you can say to them "Have a nice j.........."

4. A c............ is a trip on the sea visiting different places.

5. I'd love to move to the country and live in a old c.............

6. In the city centre, inexpensive a.......... is hard to find because it is scarce.

7. The main symptom of a cold is that you keep s...........

8. She was in terrible pain and the nurse gave her an i...........

9. He has worked so much on the computer today so he has a terrible

h...........

10. When I'm on holiday, I enjoy s......... on the beach.

IV/ Read the following paragraph and write the correct word (printed in bold type) for each definition.

The world's oceans are so vast that they can cope with the present levels of pollution. However, little is known about the long term effects of such slow poisoning. The most serious problem of modern times is that man is destroying the earth's natural resources and transforming huge areas into wasteland. As a result, it is becoming extremely difficult to grow enough to feed the world's rapidly increasing population. A way of protecting all the wildlife on the earth must also be found as many species are in danger of disappearing completely from the face of the earth. The dangers, however, are not confined solely to the land and the sea. The smoke in the atmosphere, for example, in increasing so much that the amount of sunlight has been reduced in many cities. Man's whole environment is being changed in a serious way.

1. birds, animals, fish which are not tame ...........................

2. keeping something safe from harm ...........................

3. The process of making something dirty ................

4. barren area, desert ......................

5. the air, water and land in which we live.....................

6. causing damage ......................

7. wealth, goods or products people can use ...................

8. The air surrounding the earth .....................

9. the number of people living in one place .......................

10. results, consequences .............................

V/ Complete the paragraph by using the correct form of the words in brackets.

A STRANGE OBJECT IN THE FIELD

There is a considerable public concern in Shaston following the (discover).............. on Wednesday evening of a metal (contain)............... filled with (poison).............. liquid. The object was found by a local (reside).............. when he was walking with his lovely dog in a field behind a newly built chemical factory. As yet, the factory has been (able)........... to provide any (explain)............. as to show how the object came to be in the field. A spokersperson stated that a full investigation was taking place and that security procedures were being reviewed.

People living in the (neighbor)............are extremely angry, as a year ago they withdrew their objection to the (decide).............. to biuld the factory here after the company had stated that no dangerous (chemistry).............. would be produced on this site.

1
10 tháng 2 2019

V/ Complete the paragraph by using the correct form of the words in brackets.

A STRANGE OBJECT IN THE FIELD

There is a considerable public concern in Shaston following the (discover)...discovery........... on Wednesday evening of a metal (contain)....container........... filled with (poison)....poisonous .......... liquid. The object was found by a local (reside).....resident......... when he was walking with his lovely dog in a field behind a newly built chemical factory. As yet, the factory has been (able)....unable....... to provide any (explain)...explanation.......... as to show how the object came to be in the field. A spokersperson stated that a full investigation was taking place and that security procedures were being reviewed.

People living in the (neighbor)..neighborhood..........are extremely angry, as a year ago they withdrew their objection to the (decide)....decider.......... to biuld the factory here after the company had stated that no dangerous (chemistry)...chemical........... would be produced on this site.

I. Fill in the blank with the correct form of the word 1. What is the correct .............. of this word (pronounce) 2. Last week we have an ........... summer holiday ( enjoy) 3. The ............ of the project made me tense ( important) 4. You had better do some........... for the final exam ( revise) 5. ....................., her illness was more serious than we thought ( fortunate) II. Fill in each gap with a suitable word to complete th following passage Rivers are one of the...
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I. Fill in the blank with the correct form of the word

1. What is the correct .............. of this word (pronounce)

2. Last week we have an ........... summer holiday ( enjoy)

3. The ............ of the project made me tense ( important)

4. You had better do some........... for the final exam ( revise)

5. ....................., her illness was more serious than we thought ( fortunate)

II. Fill in each gap with a suitable word to complete th following passage

Rivers are one of the world's most important natural resources . Many cities are on the large rivers, and (1)......... every country has a least one river that (2)............. an important part in the lives of its people . Beside transportation, rivers (3).......... water for crops, water to drink , and re creation for people who live along their (4).............. And in (5)............ to get water for crops , engineers sometimes build a dam (6) a river and let water become a lake behind the dam . Then people can use their water not (7)........ irrigate fields but also to make eletricity for homes and industries. (8)........ the water often becomes polluted when cities river bank grow (9) ............ and the number of industries increases. We are learning that it is necessary to (10) ....... rivers clean if we want to enjoy the benefits of the natural resources.

1
17 tháng 11 2017

I. Fill in the blank with the correct form of the word

1. What is the correct pronunciation of this word (pronounce)

2. Last week we have an enjoyable summer holiday ( enjoy)

3. The importance​ of the project made me tense ( important)

4. You had better do some revision for the final exam ( revise)

5. Unfortunately, her illness was more serious than we thought ( fortunate)

II. Fill in each gap with a suitable word to complete th following passage

Rivers are one of the world's most important natural resources . Many cities are on the large rivers, and (1) almost every country has a least one river that (2) plays an important part in the lives of its people . Beside transportation, rivers (3) provide water for crops, water to drink , and re creation for people who live along their (4) banks And in (5) order to get water for crops , engineers sometimes build a dam (6)across a river and let water become a lake behind the dam . Then people can use their water not (7) Only irrigate fields but also to make eletricity for homes and industries. (8) However the water often becomes polluted when cities river bank grow (9) in size and the number of industries increases. We are learning that it is necessary to (10) keep rivers clean if we want to enjoy the benefits of the natural resources.