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Rewrite the sentences without changing the meaning.
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 would 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 would get rid of his cough
5. She is very shy, so she doesn’t enjoy the party.
→ If she weren’t shy, she could enjoy the party.
6. I get a work permit. I will stay for another month.
→ If I get a work permit, I will stay for another month
7. He doesn’t take any exercises. He is so unhealthy.
→ If he didn’t take any exercises, he is so unhealthy
8. We can’t get the ket because I don’t have the right change.
→ If I had the right change,we could get the ket
9. Study hard or you won’t pass the exam.
→ If you study hard, you would pass the exam
10. Don’t be impatient or you will make mistakes.
→ If you are impatient, you will make mistakes.
1. The river which flows through Ho Chi Minh City is the Sai Gon River.
2. Mr Phong who is supposed to be at the meeting hasn’t come yet.
3. Our solar system is in a galaxy which is called the Milky Way.
4. I come from a city which is located in the southern part of the country.
5. I’ve recently gone back to the town where I was born.
6. Do you know the name of the hotel where John is staying?
7. There are some words which are very difficult to translate.
8. What is the name of the man whose car you borrowed?
9. This watch which I have lost costs a lot of money.
10. We were given a lot of information most of the which was useless.

* 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.

32. If you want my advice you would forget about buying a new house.
_ If I were you ,I would notbuy a new house
33. The accident happened because the train driver ignored a warning light
_ If the train driver had not ignored a warning light, The accident would not have happened
34. We couldn't contact him because he gave us the wrong number.
_ If he gave us the true number , we could contact him.
35. They didn't follow the map, so they got lost.
_ If they had followed the map, they would not have got lost
36. I didn't know you were coming, so I didn't wait for you.
_ If I knew you
37. You failed the exam because you didn't study hard.
_ If you had studied hard, you would not have failed the exam
16. Jim didn' t lend me any money, so I was unable to buy the car.
_ If Jim lent me money , I could buy the car.
17. The temperature didn't fall below zero last night, so the crops weren't damaged.
_ If the temperature fell below zero last night, the crops would damaged.
18. Joan will not stay at school because she doesn't find a job before september.
_ If Joan found a job before september, she would stay at school .
19. Mary didn't work hard enough, she failed the exam.
_ If Mary worked hard , she would final the exam.
20. You don't get a visa, you can't visit the United state.
_ If you don't get a visa, you can't visit the United State.
21. Elizabeth got a bad cough because she started smoking cigarettes.
_ If Elizabeth din't start smoking cigarettes,she woudn't get a bad cough.
22. Mr Tom didn't prepare his speech carefully, so he did it very badly.
_ If he prepared his speech carefully , he could do it very well.
23. The gardener didn't water those plants yesterday, so they died.
_ If The gardener watered those plants yesterday,they wouldn't die.
24. Without the sun, there would be no kinds of energy.
_ If there were no the sun, there would be no kinds of energy.
25. We got lost because we didn't have a map.
_ If we had a map , we wouldn't get lost
26. He didn't study hard he failed in his examination.
_ If he studied hard , he could pass his examination.
27. I made that terrible mistake because I wasn't thinking.
_ If I thought ,I wouldn't make that terrible mistake.
28. I bought the dog because my children wanted a bet.
_ If my children didn't want a bet, Iwouldn't buy the dog
29. Mr Mill lost his job because he was late everyday.
_ If Mr Mill weren't late everyday, he would lose his job.
30. If I had known she was sick, I would have visited her.
_ Had I known she was sick, I would have visited her.
31. You'd better not touch that switch.
_ If I tought that switch, I would hit you.

1 he can not go out because he has to study for his exam
=> if .................he didn't have study for his exam, he could go out........................................................................
2 she is lazy so she can not pass the exam
=> if ........................she wasn't lazy, she could pass the exam
.......................................................................
3 he will pay me tonight , i will have enough money to buy a car
=> if .........he doesn't pay me tonight, i won't have enough money to buy a car ..................................................................................
4 he smokes too much , that is why he can not 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 does not enjoy the pary
=>if .............. she wasn't shy, she could enjoy the party................................................................
6 i will get a work permit . i will stay for another month
=>if .......................I get a work permit, I will stay for another month..................................................................
7 he does not take any exercises. he is so unhealthy
=>if ............he took some exercises, he couldn't be unhealthy..............................................................
8 we can not get the ticket because i don not have the right change
=> if I have the right change, we could get the ticket.........................................................................................................
9 study hard or you won't pass the exam
=>if .....................you studied hard, you would pass the exam..........................................
10 don't be impatient or you will make mistakes
=>if .........................you was impatient, you would make mistakes....................................................

VI-Supply the correct verb form
1. If you study (study) hard, you will pass the written examination
2. If the weather is (be) fine, We will go for a picnic
3. He will write (write) to you if he has time
4. They will have (have) a lot of fun if they come there
5. If she doesn't hurry(not hurry), she will miss the bus
6.Had I had a map, I wouldn't have lost way (not lose)
7. He said he would go (go) to HCM city the following day
8. She asked if my school was (be) near there
9. Maryam said she had to (must) go then
10. I asked her where she lived (live)
11. The examiner asked me if I spoke (speak) any foreign languages

1. were
2. were
3. What would you do if you won a lot of money?
4. came
5. studied
6. would destroy
7. were
8. saw
9. If she revised the old lesson, she wouldn't get bad marks.
10. If she had money, she wouldn't be bored.
1. He would tell you about if he ( be ) were here
2. We could play tennis if it were( be ) fun
3. What would you ( do ) do if you ( win ) won a lot of money ?
4. Would you mind if I ( come ) came a little tomorrow ?
5 . If he ( study ) studied hard , he could not fail his exam
6. Our lives ( destroy ) would destroy if the earth didn't go around the sun
7. If I ( be ) were you , I would travel around the world
8. I would take photos of UFO if I ( see ) saw them

5/ I don't have a typewriter. I can't type it myself.
> If I had a a typewriter, I could type it myself.
6.I don't live in a big city, so I can't go to the cinema very often.
>If I lived in a big city, I could go to the cinema very often.
7. Lan doesn't have a bike, she walks to school.
>If Lan had a bike, she wouldn't walk to school.
8. I'm not a doctor , so I can't help you
>If I were a doctor, I could help you.
9 They do not understand you because you do not often talk to them.
>If you often talked to them, they would understand you.
10. I'm so busy , so I don't write to my friends regularly.
>If I weren't so busy, I would write to my friends regularly.
11. People don't trust him because he tells lies.
> If he didn't tell lies, people would trust him.
12. She is so busy that she can't come to the party.
> If she weren't so busy, she could come to the party.
13. I don't have the money , so I can't go on holiday.
> If I had the money, I could go on holiday.
14. He gets bad marks because he is lazy.
> If he weren't lazy, he wouldn't get bad marks.
15. Do it now , or you will not finish it on time.
> If you don't do it now, you won't finish it on time.
16. Hurry up , or we will be late for the exam.
>If we don't hurry up, we will be late for the exam.
17. Be quiet , or you will not understand the lesson.
>If you aren't quiet, you will not understand the lesson.
18. The office may be closed , so Mark won't be able to get in.
> If the office is closed, Mark won't be able to get in.
19. You can't look the word up because you haven't got a dictionary
>If you had got a dictionary, you could look the word up.

Câu If:
1) My mother buys that car for him. He will be happy.
--> If my mother buys that car for him,he will be happy
2) They don't buy that car because it is so expensive.
--> If that car weren't so expensive ,they would buy it
3) Mary is lazy, so she doesn't pass her exam.
--> If Mary weren't lazy ,he would pass her exam
4) The weather is very cold, and we won't take a bath.
--> If the weather weren't very cold,we would take a bath
5) She is so busy and she doesn't have dinner.
--> If she weren't so busy ,she would have dinner
6) Our teacher doesn't come to class because he does something.
--> If our teacher didn't do sth,she would come to class
7) I don't enjoy the film because it is not exciting.
--> If the film were exciting,i would enjoy it
8) Because they come here late, they don't see Mr. John.
--> If they didn't come here late,they would see mr.john
9) My sister finishes the test easily because she is very intelligent.
--> If my sister weren't very intelligent ,she wouldn't finish the test easily
10) My father is busy and he never watches TV.
--> If my father weren't busy,he would watch TV
11) Go out or you will be bitten.
--> If you don't go out,you will be bitten
12) Don't be late or you fail in the exam.
--> If you are late,you will fail in the exam
13) You won't win because he doesn't advised you.
--> If he advised you,you would win
14) Mary stays at home because she is sick.
--> If Mary weren't sick,she wouldn't stay at home
2.If i had got scissors, I would lend you.
3.Should you defy instructions, we'll be forced to act.
4.If he hadn't failed the exam, his father wouldn't .be very sad.
5.Had she gone over her illness as we expected because she stopped using the medicine.
6.If he hadn't paid attention to my words, he wouldn't have solved the problem.
7.If she got up early, she wouldn't be late for school.
8.If I hadn't had a flu last week, I would have gone to school on time.
9.If I were you, I would save the money in the bank.
10.You can only phone her when you know her phone number.