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I. Make questions for the following sentences based on the underlined words.
1. She is unhappy because her grades in Maths are so bad.
Why is she unhappy?
2. My sister looked tired because she had too many exercises to do.
Why did your sister look tired?
3. We mustn't let the children play in the kichen because it is sometimes a dangerous place.
Why mustn't we let the children play in the kitchen?
4. She didn't feel well because she ate too much meat.
Why didn't she fell well?
5. I can't buy those books because I don't have enough money.
Why can't you buy those books?
6. They were wet because it rained heavily.
Why were they wet?
7. My sister stayed at home yesterday because she felt sick.
Why did your sister stay at home yesterday?
8. I did not travel by train because the weather was so bad.
Why didn't you travel by train?
9. The man had to leave the office immediately because he did not feel well.
Why did the man have to leave the office immediately?
10. They wear warm clothes because it is cold.
Why do they wear warm clothes?
Change clauses of reas on to phrases: 1. Mary didn't go to school yesterday because she was sick. ..Because of Mary's sickness , she didn't go to school yesterday ...
2. She went to bed early because she felt tired. ..She went to bed early because of feeling tired ...
3.Ann didn't go to the circus with Betty because she had a bad cold ...Ann didn't go to the circus with Betty because of having a bad cold ..
4. John succeeded in his exam because he worked hard and methodically. ..John succeeded in his exam because of his hard and methodically work..
5. Margaret stayed home because her mother was sick. ..Margaret stayed home because of her mother 's sickness....
6. I like him because his father is kind to me. .... I like him because of his father 's kindness.
7. I can't eat these fruits because they are green. ...I can't eat these fruits because of being green..
8. I couldn’t do the test because it was difficult. .I couldn’t do the test because of its dificulty...
9. I couldn’t read the letter because it was dark. .. I couldn’t read the letter because of the darkness.
10. He came late because it rained heavily .... He came late because of the heavy rain...
Change clauses of reas on to phrases:
1. Mary didn't go to school yesterday because she was sick.
=> Mary didn't go to school yesterday because of her sickness
2. She went to bed early because she felt tired.
=> She went to bed early because of her tiredness
3.Ann didn't go to the circus with Betty because she had a bad cold
=> Ann didn't go to the circus with Betty because of her bad cold
4. John succeeded in his exam because he worked hard and methodically.
=> John succeeded in his exam because of working hard and methodically.
5. Margaret stayed home because her mother was sick.
=> Margaret stayed home because of her mother’s sickness
6. I like him because his father is kind to me.
=> Because of the kind of his father, I like him.
7. I can't eat these fruits because they are green.
=> Because of green fruits, I can't eat them.
8. I couldn’t do the test because it was difficult.
=> Because of its difficulty, I couldn't do the test .
9. I couldn’t read the letter because it was dark.
=> Because of the darkness , I couldn’t read the letter .
10. He came late because it rained heavily
=> Because of the heavy rain, He came late .
1 I'm busy so i can't go out with my friends
➞ If i had free time, i could go out with my friends
2 He plays soccer well so he can take part in the Games
➞ If he plays soccer well, he can take part in the Games
3 She can't go to the party because i don't invite her
➞ If i invited her, she could go to the party
4 I can't get a job easily because I don't have a degree
➞ If i had a degree, i could get a job easily
5 He doesn't have enough money , so he doesn't buy a house
➞ If he had enough money, he would buy a house
6 It is raining heavily so we can't go to the market
➞ If it weren't raining heavily, we could go to the market
7 He will go to watch the World Cup because he is studying in Russi
➞ If he studies in Russi, he will go to watch World Cup
8 I didn't talk to him because i didn't know him
➞ If i had knonw him, i would have talked to him
9 John didn't have money so he couldn't lend you some
➞ If he had had money, he could have lent you some
10 We couldn't go out because the weather was so bad
➞If the weather hadn't been so bad, we could have gone out
11 Mary didn't wear the raincoat, so she got a cold
➞If Mary had worn the raincoast, she wouldn't have got cold
12 Marry was injured in the crash because she wasnot wearing the seat belt
➞ If Marry had been wearing the seat belt, she wouldn't have been injured in the crash
13 Carol didn't answer the phone because he was studying
➞ If Carol hadn't been studying, he would have answered
14 You didn't eat breakfast, so you are hungry now
➞If you had eaten breakfast, you wouldn't be hungry now
15 I stayed up late last night, so i feel asleep now
➞If i hadn't stayed up late last night, i wouldn't feel asleep now
16 I can't retell the film now because i didn't watch it last night
➞If i had watched the film last night, i could retell it now
17 He is tired now because he drank too much yesterday evening
➞If he hadn't drunk too much yesterday evening, he wouldn't be tired now
18 I bought the car yesterday, so I run out of money now
➝ If i hadn't bought the car yesterday, i wouldn't run out of money now
19 He didn't go to the class regularly, so he can't take part in the competition now
➞If he had gone to the class regularly, he could take part in the competition now
1. We could do the test . It was very difficult (although)
=> Although the test was very difficult , we could do it
2.Tom couldn't go too school. He was ill ( so...that)
=> Tom was ill so that he couldn;t go to school
3.Solar anergy is cheap . It is also clean ( not only ... but also )
=> Solar energy is not only cheap but also clean
4. They arrived very late . They didn't see the beginning of the film (so...that)
=> They arrived very late so that they didn't see the beginning of the film
5.It was an expensive car . We couldn't afford to buy it(such)
=> It was such an expensive car that we couldn't afford to buy
6. There was few people at the meeting . It was cancelled(because)
=> The meeting was cancelled because there was few people at this
7.. We couldn't understand her because she spoke too fast (Therefore)
=> She spoke too fast,therefore we couldn;t understand her
8.I've meet too many people. I can't remember all their name (because)
=> I can't remember all their name because I've meet too many people
9. These exercise are very difficult . She can't do them (such...that)
=> These are such difficult exercise that she can't do them
10. It rained heavily . They went to school(despite)
=> Depite rainning heavily, they went to school
11. I can't go with you . I have a lot of work to do(Because of)
=> Because of having a lot of working, I can't go with you
1. We could do the test . It was very difficult (although)
Although the test was very difficult, we could do it
2.Tom couldn't go too school. He was ill ( so...that)
Tom was so ill that he couldn't go to school
3.Solar anergy is cheap . It is also clean ( not only ... but also )
Not only is solar energy cheap but it also clean
4. They arrived very late . They didn't see the beginning of the film (so...that)
They arrived so late that they didn't see the beginning of the film
5.It was an expensive car . We couldn't afford to buy it(such)
Such an expensive car ! We couldn't afford to buy it
6. There was few people at the meeting . It was cancelled(because)
It was cancelled because there was few people at the meeting
7.. We couldn't understand her because she spoke too fast (Therefore)
8.I've meet too many people. I can't remember all their name (because)
I can't remember all people name because I've met too many people
9. These exercise are very difficult . She can't do them (such...that)
It's such a difficult exercise that she can't do them
10. It rained heavily . They went to school(despite)
Despite heavy rain, they went to school
11. I can't go with you . I have a lot of work to do(Because of)
Because of doing a lot of work, I can't go with you
Ex1: (Conditionals,I wish,Past Subjunctive) Finish each of the following sentences in such a way that it means the same as the sentences printed before it
1,The only reason Jimmy often gets bad marks is because he is lazy
If Jimmy weren't lazy, he wouldn't often get bad marks.
2,We got lost because we didn't have a map
If we had had a map, we wouldn't have got lost.
3,We didn't go on holiday because we did not have enough money
If we had had enough money, we would have gone on holiday.
4,She didn't hurry,so she missed the train
If she had hurried, she wouldn't have missed the train.
5,I bought beef because I didn't know she couldn't eat it
If I had known she couldn't eat beef, I wouldn't have bought beef.
6,Providing that you leave a forwarding address,we will be able to contact you
Unless you leave a forwarding address, we will be able to contact you.
7,Unless you save some money,you will never be able to buy a car
Provided that you save some money, you will be able to buy a car.
8,The boys don't have any matches,so they can't light the fire
If the boys had some matches, they could light the fire.
Ex1: (Conditionals,I wish,Past Subjunctive) Finish each of the following sentences in such a way that it means the same as the sentences printed before it
1,The only reason Jimmy often gets bad marks is because he is lazy
If Jimmy.....weren't lazy , he wouldn't often get bad marks
2,We got lost because we didn't have a map
If we.....had a map , we wouldn't get lost
3,We didn't go on holiday because we did not have enough money
If we.had enough money , we would go on holiday ...
4,She didn't hurry,so she missed the train
If she.had hurried , she would have missed...
5,I bought beef because I didn't know she couldn't eat it
If I.... had known she couldn't eat beef, I wouldn't have bought beef.
6,Providing that you leave a forwarding address,we will be able to contact you
Unless you leave a forwarding address, we will be able to contact you
7,Unless you save some money,you will never be able to buy a car
Provided that.. you save some money, you will be able to buy a car...
8,The boys don't have any matches,so they can't light the fire
If the boys. had some matches, they could light the fire...
Match the questions in column A to the answers in the column B
A
1. Why didn't Nam come to the party ?c. Because he had a lot of homework to do.
2. Why were you late ? d. Because we misse the first bus.
3. Why do they have to leave soon ?a. Because they'll have an appointment at ten.
4. Why are you laughing ?e. Because the stories are so funny.
5. Why don't you take a taxi ?f. Because I don't have enough money.
6. Why did your sister stay late at the office ?b. Because she had to finish the report.
7. Why couldn't Jane pass the final exam ?g. Because she didn't study hard enough.
8. Why wasn't Mary at work yesterday ?h. Because she didn't feel well
Ex1: Rewrite the following sentences so that the second sentence means exactly the same as the sentence before it:
1. Although she was not beautiful, she took part in a beauty contest.
-> She wasn't beautiful but she took part in a beauty contest.
2. It was raining, so we decided to postpone our camping.
-> Since it was raining, we decided to postpone our camping.
3. She wants them to sing a song.
-> She suggests they should singing a song.
4. She couldn't come to class because of her illness.
-> As she was ill, she couldn't come to class.
5. She couldn't join us because she was busy.
-> She was busy, so she couldn't join us.
6. Because of having a lot of difficulties, she managed to sell the house.
-> As she had a lot of difficulties, she managed to sell house.
7. Shall we go to the cinema tonight ?
-> What about going to the cinema tonight?
8. They requested us to leave the place at once.
-> They suggested we leaving the place at once.
9. I stay at home because it is raining.
-> As it is raining, I stay at home.
10. She was tired and therefore wanted to go home.
-> She wanted to go home because of tiring
Ex2: Complete the sentences using and / but / so / or / because:
1. I like Linda very much ..but... I don't like her brother.
2. I'd like to live somewhere by the Mediterranean ..because... I love the Sun.
3. We enjoy learning English ....so..... we find it very difficult.
4. I can't go out tonight ....because..... I am short of money.
5. She went to the theatre last night ....and.... had a wonderful time.
6. They can't walk home ......because...... it is very dark.
7. Would you like to drink milk .....or....coffee ?
8. It's raining heavily, ....so.... I can't go out.
9. He did the tests well ...and...I did, too.
10. His life was hard ....but... he studied very well.
Ex3: Use connectives to combine each pair of the sentences:
1. He is very tired. He has to finish his homework. (but)
-> He is very tired but he has to finish his homework.
2. The room is very small. It's quite comfortable. (although)
-> Althought the room is small, it's quite comfortable.
3. They went for a walk. The weather was bad. (but)
-> The weather was bad but they went for a walk.
4. Our teacher didn't arrive late. The traffic was terrible. (although)
-> Althought the trafic was terrible, our teacher didn't arive late.
5. I like watching TV. I like going to the cinema. (and)
-> I like watching TV and going to the cinema.
6. She wears glasses. She wants to see better. (because)
-> She wears glasses because she wants to see better.
Study well. 
1. He is very tired. He has to finish his homework. (but)
-> He is very tired but he has to finish his homework.
2. The room is very small. It's quite comfortable. (although)
->Although the room is very small, It's quite comfortable.
3. They went for a walk. The weather was bad. (but)
-> The weather was bad but they went for a walk.
4. Our teacher didn't arrive late. The traffic was terrible. (although)
-> Although the traffic was terrible, our teacher didn't arrive late.
5. I like watching TV. I like going to the cinema. (and)
-> I like watching TV and going to the cinema.
6. She wears glasses. She wants to see better. (because)
-> She wears glasses because she wants to see better.
Hãy điền "Because" hoặc "Because of" vào mỗi chỗ trống sau.
1) He is going to give up his present job .........Because of........... his illness.
2) The couldn't come here ......Because....... they were very busy.
3) The shouted at him ....Because of... his bad behavior.
4) She can't do this exercise .......Because of............ her absence yesterday.
5) The policeman ordered him to top his car ......Because of........ his overspeed.
6) We couldn't carry the parcel ....Because........ it was heavy.
7) She didn't clean the floor ....Because of... her laziness.
8) They stopped working .....Because of... the heavy rain.
9) We couldn't buy the car ....Because of...... shortage of money.
10) The stayed at home ............Because.......... it was bad.
11) I felt happy ....Because of.... his perfect operation.
12) The candidate felt tired during he examinatinon.......Because.... he didn't have breakfast.
13) We like living in the countryside ....Because of.... its clan air.
14) She can't have any more children ..Because of..... her old age.
15) I must wear uniform ...Because.... it is my school's regulation.
Combine using enough or too
1. I am very tired. I can not go to the cinama this evening
I am too tired to go to the cinema this evening
2. The table was light. She could movie it
the table was light enough for her to move it
3. The children aren't tall. They can not reach the shef
the children aren't tall enough to reach the shef
4 . The tourist spoke very quickly. I couldn't understand him
the tourist spoke too quickly for me to understand him
5. The bus runs slowly . The girl can catch it
the bus runs slowly enough for the girl to catch it
6. The room is very dark. We can not study in it
the room is too dark for us to study in it
7. The teacher teaches very well. She attracts many students
the teacher teaches well enough to attracts many students
8. The river is small. The boy can swim across it
the river is small enough for the boy to swim across it
9. It rained very hard yesterday . We couldn't play soccer
it rained hard enough yesterday for us not to play soccer
10. He arrived at the station early. He could catch the train
he arrived at the station early enough to catch the train
11. All students had to stay at home because it rained heavily
it rained heavily enough for all students to stay at home
12. Your can not catch any taxi to the airport because it is very early
it's too early to catch any taxi to the airport
13. The truck can go through the gate because it is very wide
it is wide enough for the truck to go through
15. The room was very comfortable. We all fell asleep easily
the room was comfortable enough for us to feel asleep easily
16. It was very cold. They couldn't keep working in the field
it's too cold to keep working in the field
17. He spoke slowly. We could understand him
he spoke slowly enough for us to understand him
18. The fair was very noisy. We couldn't hear each other
the fair was too noisy for us to hear each other
19 . The soup is very excellent. We wil have some
the soup is excellent enough for us to have some
20. The were very tired, so they stopped working
they were tired enough to stop working
21. They question was very hard. We couldn't answer it
the question is too hard for us to answer it
22. The TV programmer is very execing. The children won' t miss it
the Tv programmer is exciting enough for the children to watch
23. You' rẻ very young. You can not drive that car
you are not old enough to drive that car
24. She was tired. She did not go any where
she was too tired to go anywhere
25. These shose are very small. I can not wear them
these shoes are not big enough for me to wear them
I.Make questions for the following sentences based on the underlined words :
1. She is unhappy because her grades in Maths are so bad
=>Why is she unhappy?
2. My sister looked tired because she had too many exercises to do
=>Why did your sister look tired?
3. We mustn't let the children play in the kitchen because it is sometimes a dangerous place
=>Why must we not let children play in the kitchen?
4. She didn't feel well because she ate too much meat
=>Why did she not feel well?
5. I can't buy those books because I don't have enough money
=>Why can't you buy those books?
6. They were wet because it rained heavily
=>Why were they wet?
7. My sister stayed at home yesterday because she felt sick
=>Why did your sister stay at home yesterday?
8. I did not travel by train because the weather was so bad
=>Why didn't you travel by train?
9. The man had to leave the office immediately because he didn't feel well
.=>Why did the man have to leave the office immediately
10. They wear warm clothes because it is cold
=>Why do they wear warm clothes
I.Make questions for the following sentences based on the underlined words :
1. She is unhappy because her grades in Maths are so bad
why is she unhappy??
2. My sister looked tired because she had too many exercises to do
why did your sister look tired?
3. We mustn't let the children play in the kitchen because it is sometimes a dangerous place
why mustn't you let the children play in the kitchen?
4. She didn't feel well because she ate too much meat
why didn't she feel well?
5. I can't buy those books because I don't have enough money
why can't you buy those books?
6. They were wet because it rained heavily
why were they wet?
7. My sister stayed at home yesterday because she felt sick
why did your sister stay at home ?
8. I did not travel by train because the weather was so bad
why didn't you travel by train ?
9. The man had to leave the office immediately because he didn't feel well
why did the man have to leave the office immediately?
10. They wear warm clothes because it is cold
why do they wear warm clothes ?