. Stop talking or you won’t understand the lesson.
→ If__you don't stop talking, you won’t understand the lesson._____
24. I don’t know her number, so I don’t ring her up.
→If__I knew her number, I would ring her up___
25. I don’t know the answer, so I can’t tell you.
→ If _I knew the answer, I would tell you_
26. We got lost because we didn’t have a map.
→ If __we had got a map, we wouldn't have lost_______
27. Susan felt sick because she ate four cream cakes.
→___If Susan hadn't eaten four cream cakes, she wouldn't have felt sick__
28. Without this treatment, the patient would have died.
→__If it hadn't been for this treatment, the patient would have died.___
29. He lost his job because he was late every day.
→__If he hadn't been late every day, he wouldn't have lost his job__
30. Peter is fat because he eats so many chips.
→____If Peter didn't eat so many chips, he wouldn't be fat___
31. Robert got a bad cough because he started smoking cigarettes.
→ If Robert hadn't started smoking cigarettes, he wouldn't have got a bad cough

23. If you don't stop talking, you won't understand the lesson.

24. If I don't know her number, I won't ring her up.

25. If I don't know the answer, I won't tell you.

26. If we don't have a map, we will get lost.

VI.  Make conditional sentences:

1. Keep silent or you’ll wake the baby up.

→ If you don't keep silent, you will wake the baby up.

2. Stop talking or you won’t understand the lesson.

→ If you don't stop talking, you won't understand the lesson.

3. I don’t know her number, so I don’t ring her up.

→ If I knew her number, I would ring her up.

4. I don’t know the answer, so I can’t tell you.

→ If I knew the answer, I could tell you.

5. We got lost because we didn’t have a map.

→ If we had a map, we wouldn't have gotten lost.

6. Susan felt sick because she ate four cream cakes.

→ If Susan hadn't eaten four cream cakes, she wouldn't have felt sick.

8. He lost his job because he was late every day.

→ I couldn't find sentence 7 in the previous search results.

9. Peter is fat because he eats so many chips.

→ If Peter didn't eat so many chips, he wouldn't be fat.

10. Robert got a bad cough because he started smoking cigarettes.

→ If Robert hadn't started smoking cigarettes, he wouldn't have gotten a bad cough.

VII. Rewrite the following sentences:

1. He can’t go out because he has to study for his exam.

→ If he didn't have to study for his exam, he could go out.

2. She is lazy so she can’t pass the exam.

→ If she weren't lazy, she could pass the exam.

3. He will pay me tonight; I will have enough money to buy a car

→ If he pays me tonight, I will have enough money to buy a car.

4. He smokes too much; that’s why he can’t get rid of his cough.

→ If he didn't smoke too much, he could get rid of his cough.

5. She is very shy, so she doesn’t enjoy the party.

→ If she weren't so shy, she would enjoy the party.

6. I will get a work permit. I will stay for another month.

→ If get a work permit, I will stay for another month.

7. He doesn’t take any exercises. He is so unhealthy

→ If he took exercises, he wouldn't be so unhealthy.

8. We can’t get the ticket because I don’t have the right change.

→ If I had the right change, we could get the ticket.

9. Study hard or you won’t pass the exam.

→ If you don't study hard, you won't pass the exam.

10. Don’t be impatient or you will make mistakes.

→ If you are patient, you won't make mistakes.

11. I didn’t eat lunch, I feel hungry now.

→ If I I had eaten lunch, I wouldn't feel hungry now.

12. I only come if they invite me.

→ Unless they invite me, I only come.

13. He didn’t revise all his lessons, he failed the exam.

→ If he had revised all his lessons, he wouldn't have failed the exam.

14. The park is over there, only 5 minutes’ walk.

→ If you walk, the park is only 5 minutes away.

15. Leave me alone or I’ll call the police.

→ Unless you leave me alone, I will call the police.

16. If you arrive at the office earlier than I do, please turn on the air-conditioner.

→ Should you arrive at the office earlier than I do, please turn on the air-conditioner.

17. The children don’t go to school in the snowy weather.

→ If it snows, the children don't go to school.

18. He died so young; otherwise, he would be a famous musician by now.

→ Had he not died so young, he would be a famous musician by now.

19. You must tell me the whole truth or I won’t help you.

→ Unless you tell me the whole truth, I won't help you.

20. The car breaks down so often because you don’t take good care of it.

→ Were I taking good care of it, the car wouldn't break down so often.

21. He is very bad-tempered, that’s why his wife left him soon after marriage.

→ If he weren't so bad-tempered, his wife wouldn't have left him soon after marriage.

22. 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.If you don't keep quiet, you will wake the baby.

2.If you keep talking, you won't understand the lesson.

3.If you throw garbage in the river, the water will be polluted.

4. If I knew her number, I would have called her.

5.If I knew the answer, I would tell you.

6.If the water is too dirty, the fish will die.

7.If we don't have a map, we will get lost.

8. If Susan eats four cakes, she will get sick.

9.If the weather wasn't good, we wouldn't have had a picnic.

10.If we keep the water clean, we will have enough water to use in the future.

11.If Peter eats too many sweet potatoes, he might get fat.

12.If you water regularly the plant will grow well.

13. If you don't finish your homework, you won't be able to go out tonight.

14.If they go out, they will help me.

15.If he practices more, he will be able to win the game.

37. study harder, you won't fail the exam

38. knew her number, i would ring her up

39. was born in Malaysia where Rubber trees grow well

40.  gave you a lift last night, who is my former teacher

1.Keep silent or you’ll wake the baby up.

→ If you don't keep silent, you'll wake the baby up

2. Stop talking or you won’t understand the lesson. →If you don't stop talking, you won't understand the lesson

3. I don’t know her number, so I don’t ring her up. →If I knew her number, I would ring her up

4. I don’t know the answer, so I can’t tell you. → If I knew the answer, I would tell you

5. We get lost because we don’t have a map.

→ If we had a map, we wouldn't get lost

6. He loses his job because he is late every day. → If he wasn't late every day, he wouldn't lose his job

7. Peter is fat because he eats so many chips. → If Peter didn't eat so many chips, he wouldn't be fat

8. Robert got a bad cough because he started smoking cigarettes. → If Robert hadn't started smoking cigarettes, he wouldn't have got a bad cough

1.Keep quiet or you will wake the baby. → If you don't keep quiet, you will wake the baby.

2.Say no more, and you will understand the lesson. → If you stop talking, you will understand the lesson.

If you don't keep silent, you will wake the baby up

If you don't stop talking, you won't understand the lesson

If I know her number, I will ring her up

If I learn this subject, I will know the answer

If we have a map, we won't got lost

If Susan hadn't eaten 4 cream cakes, she wouldn't have felt sick

If the doctor had tried their best, the patient wouldn't have died

If he hadn't came to work late every day, he wouldn't have lost his job

If Peter doesn't eat so many chips, he won't be fat

If Robert hadn't started smoking cigarettes, he wouldn't have had a bad cough

1. I don’t know her number, so I don’t ring her up.

→ If ……………………I knew her number, I would ring her up……………….....….…………………………….

2. There was a loud noise next to my door last night, so I couldn’t sleep.

→ Because ……………there was a loud noise next to my door last night,  I couldn’t sleep.……………………………………………………

3. They provided food then cleared up the debris.

→ After ……………… they had provided food, they cleaned up the debris. ………………………………………………….

4.Someone has stolen by bicycle.

→ My bicycle ……………has been stolen………………………………………………….

5.It was the first time I had been in an earthquake(never)

-> I…………………had never been in an earthquake before…………………………………….

6. I’m not you, but I think you should recycle these plastic carrier bags. ( if)

->………………If I were you, I would recycle these plastic carrier bags……………………………………………………….

7. if / I / Nam / I / not / use / this car / very often.

->………………If I were Nam, I wouldn't use this car very often……………………………………………………

1.     We can’t go swimming because it rains.

->if………….it didn't rain, we could go swimming

2.     He is poor. He doesn’t afford to buy new clothes.

->If……he weren't poor, he would afford to buy new clothes. …………….

3.     I don’t know her address, so I can’t tell you.

->If I ……….knew ..her address, I could tell you.

      4 . He can’t park near his office, so he doesn’t come by car

→ If ……he could park near his office, he would come by car ………………..

     5. My house is guarded by two big dogs. it isn’t broken into every night

→ If ………my house weren't guarded by two big dogs, it would be broken into every night………. ..

     6. The flats are not clearly numbered, so it is very difficult to find anyone.

→ If . ……the flat were clearly numbered, so it weren't very difficult to find anyone. …………

7. I don’t have a cell phone , so I can’t lend you

→ If . ……I had a cell phone , I could lend you………………

8. She works in the evening. She has no time to play with her children.

→ If ………she didn't work in the evening, she would have time to play with her children.…….. .

* Vì đây là chương trình Anh lớp 9 nên chưa nắm rõ, có gì sai sót mong AD thông cảm ạ *

Finish each of the following sentences in such a way that it is as similar as possible in meaning to the original sentence.

1. I didn’t know that you were in the hospital, so I didn’t visit you.

→ If I had known that you were in hospital, I would have visited you.

2. Hurry up or you will be late.

→ If you don't hurry up, you wil be late.

3. She is very busy, so she can’t help me now.

→ If she weren't very busy, she could help me now.

4. He didn’t phone me because he didn’t know my phone number.

→ If he had known my phone number, he would have phoned me.

5. You’re unfit because you don’t take exercise.

→ If you took more exercise, you would be fit.

6. Unless you are careful, you will cut yourself with that knife.

→ If you aren't careful, you will cut yourself with that knife.

7. If I have time, I’ll help you.

→ Unless I have time, I won't help you.

8. He didn’t study his lessons very carefully, so he gets bad marks now.

→ If he had studied his lesson very carefully, he wouldn't get bad marks now.

9. Dick often causes accidents because he drives carelessly.

→ Dick drove carefully , he wouldn't often cause accidents .

10. I can’t apply for that job because I don’t know English.

→ If I knew English, I could apply for that job.

1.If I had konwn tha you were in hospital, I would have visited you.

2.If you don't hunrry up, you will be late.

3.If she weren 't very busy, she could help my now.

4.If he had konwn my phone number, he would have phoned me

5.If you took exercise, you would be fit unfit.

6.If you are not,you will cut with that knife.

7.Unless I have time, I won't help you.

8.If he had studied his lessons very carefully, he woudn't get bad marks now.

9.If dick drove carefully, he wouldn't cause acciddent .

10.If I knew English, I could apply for that jop.

1. If I had known tha you were in hospital, I would have visited you.

2. If you don't hurry up, you will be late.

3. If she weren't very busy, she could help me now.

4. If he had known my phone number, he would have phoned me.

5. If you took more exercise, you would be fit.

6. If you are not careful, you’ll cut yourself with that knife

7. Unless. I have time, I won’t help you.

8. If he had studied his lessons very carefully, he wouldn’t get bad marks now.

9. If Dick drove carefully, he wouldn’t cause accident.

10. If I knew English, I could apply for that job.