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If you don't work harder, you will lose your job
If you don't pay attention to the teacher, you won't understand the lessons
If you don't go to bed early, you can't get up early the next morning
1. Don't forget to wash clothes after dinner
2. You will have an accident if you do not drive carefully
3.We were watching cartoons in the living room when she came in
1.People say that an avalanche........................ by loud noises in the area but I don't know if that's true.
A. causes B. has caused C. is causing D. is caused
2.You'll have to drive much................ than this if you want to pass you test.
A. carefuller B. more careful C. more carefully D. careful
8. I have free time. I go for a walk with you. => If I have free time, I'll go for a walk with you.
9. You keep making noise. I punish you. => If you keep making noise, I'll punish you.
10. You drive fast. You have an accident. =>If you drive fast, you'll have an accident.
11. He doesn’t stop smoking. He dies of lung cancer. => If he doesn't stop smoking, he'll die of lung cancer.
12. Your English is good. I accept you. => If your English is good, I'll accept you.
13. She doesn’t hurry. She is late for school. => If she doesn't hurry, she'll be late for school.
14. You stay up late. You are tired tomorrow. => If you stay up late, you'l be tired tomorrow.
15. You don’t take the medicine. Your health is worse. => If you don't make the medicine, your health will be worse.
16. We pollute the river. We don’t have water to use. => If we pollute the river, we won't have water to use.
17. She travels by plane. She is on time for the meeting. => If she travels by plane, she will be on time for the meeting.
18. He speaks fast. They don’t understand him. => If he speaks fast, they won't understand him.
19. You do this exercise well. I give you good mark. => If you do this exercise well, I'll give you good mark.
20. They don’t open the door. The room is very dark. => If they don't open the door, the room will be very dark.
1. Do your exercises or you will fail the exam.
=> If you don’t do your execises, you will fail the exam.
2. Save some money or you won’t be able to buy the house.
=> If you don't save some money, you won’t be able to buy the house.
3. Behave yourself or your parents will be very unhappy.
=> If you don't behave yourself, your parents will be very unhappy.
4. Do it carefully or you’ll feel sorry afterwards.
=> If you don't do it carefully, you’ll feel sorry afterwards.
5. Ask him first or he won’t offer to help.
=> If you don't ask him first, he won’t offer to help.
6. Be calm or you’ll make a wrong decision.
=> If you aren't came, you’ll make a wrong decision.
7. Be careful or you’ll cut yourself with that knife.
=> If you aren't careful, you’ll cut yourself with that knife.
8. Concentrate on your teacher’s lecture, or you won’t understand the lesson.
If you don't concentrate on your teacher’s lecture, you won’t understand the lesson.
9. They have to drive carefully; otherwise, they will have an accident.
If they don't drive carefully, they will have an accident.
10. Your sister must finish her homework, or she will be punished.
If your sister doesn't finish her homework, she will be punished.
11. We should do exercises regularly so that we will be in good shape.
If we do exercises regularly, we will be in good shape.
12. Take part in outdoor activities, and you will widen your knowledge.
If you take part in outdoor activities, you will widen your knowledge.
13. We should eat sensibly so that we won’t gain weight.
If we eat sensibly, we won’t gain weight.
14. You should study English well, and you will have many opportunities for good jobs.
If you study English well, you will have many opportunities for good jobs..
15. Your parents have to control their temper, or they will punish you severely.
If your parents don't control their temper, they will punish you severely.
Choose the best answer A, B, C or D to complete the sentences.
1. What are you going to do …………………. Sunday morning?
A. in B. on C. on the D. in the
2. Unless we ……………….. cutting down trees, we can’t prevent floods and other natural disasters.
A. will stop B. don’t stop C. stop D. won’t stop
3. The Nile River is the ………………… river in the world.
A. high B. longest C. most long D. longer
4. Thuy is thirsty. She likes some ……………….
A. bread B. rice C. vegetables D. orange juice
5. I ……………….. Tom and Jerry many times.
A. see B. saw C. am seeing D. have seen
6. As it doesn’t rain so I have to ……………….. the flowers in my garden everyday.
A. water B. watering C. watered D. waters
7. We postponed our journey to the beach ……………….. it rained.
A. and B. but C. or D. because
8. If we cut down more forests, there …………….. more floods.
A. are B. were C. have been D. will be
9. We should go to school by bike to ………………. energy.
A. save B. protect C. pollute D. spray
10. My sister ………………. at home yesterday.
A. am B. is C. was D. were
II. Supply the corect tense or form of the verb in parentheses.
1. If it ( rain )rains tonight, I won’t go for a walk. ……………………………
2. Listen to those people! What language they (speak)? ……are they speaking………………………
Viết lại câu là câu điều kiện loại 1
1.He doesn't take any exercises.He is so unhealthy =>If he takes exercises,he won't be unhealthy
2.We can’t get the ticket because I don’t have the right change.=> If i have the right change, we can get the ticket
3.Study hard or you won’t pass the exam.=>If you don't study hard, you won’t pass the exam.
4.Don’t be impatient or you will make mistakes.=>If you aren't impatient, you will make mistakes
5.My mother will have enough money.She will buy a new house=>If my mother has enough money, She will buy a new house
6.Getting up late makes him feel tired =>If he doesn't get up late, he won't feel tired
7.Henry will finish the report. He will go out for a walk=>If Henry finishes the report, he will go out for a walk
8.Do the homework for me, and i'll give you a gift =>If you do the homework for me, i'll give you a gift
9.Watching TV makes me feel relaxed=>If i watch TV, I'll feel relaxed
10. Don't tell lies to your boss or you'll be fired at once=>If you tell lies to your boss , you'll be fired at once
1.He doesn't take any exercises.He is so unhealthy
=>If He doesn't take any exercrise, he'll unhealthy
2.We can’t get the ticket because I don’t have the right change.
=> If I don't have the right change, we won't get the ticket
3.Study hard or you won’t pass the exam.
=>If you study hard, you'll pass the exam
4.Don’t be impatient or you will make mistakes.
=>If you impatient, you'll make mistakes
5.My mother will have enough money.She will buy a new house
=>If my mother have enough money, she'll buy a new house
6.Getting up late makes him feel tired
=>If he gets up late, he'll feel tired
7.Henry will finish the report. He will go out for a walk
=>If Henry finish the report, he'll go out for a walk
8.Do the homework for me, and i'll give you a gift
=>If you do the homework for me, I'll give you a gift
9.Watching TV makes me feel relaxed
=>If I watch TV, I'll feed relaxed
10. Don't tell lies to your boss or you'll be fired at once
=>If you tell lie to your boss, you'll be fired at once
Study hard 
Ex1
1) If you ......... careful, you will have an architect
A. won't B.won't be C.aren't
2) If we ............ hurry up, we'll miss the train
A.aren't B.don't C.won't
3) What will we do if John ..........
A.don't come B.not come C.doesn't come
4) Won't you .......... late if you leave at eight thirty
A.be B.are C.been
5) If you make the dinner, I ........will make....the drinks
Ex2. Find a mistake and correct it.
1. Unless I don't study, I will not pass the exams. ( Unless => If )
2. If the sun shines, we would walk to the town ( would => will )
3. If we will have a temperature, he will see the doctor ( bỏ will )
4. If my friends come, I will am very happy ( am => be )
5. If she earn a lot of money, she will fly to New York (earn + s)
If you don't drive carefully, you will have an accident
If you don't listen carefully, you won't know what to do