EXERCISE 1: Rewrite the following sentences using “Unless”

1. I won’t go to school if I don’t feel better.

2. Tony will walk to you is you question him.

3. If you don’t put on your overcoat, you’ll be cold.

4. You will fail the exam if you don’t work hard.

5. You’ll get a cold if you don’t keep your feet dry.

6. If I don’t leave now, I’ll miss my flight.

7. If you aren’t going to the party, I won’t go.

8. I can’t send you a postcard if  you don’t give me your address.

9. If I won a big prize in a lottery, I’d build a school for the poor.

10. I’ll call the police if you don’t leave me alone.

EXERCISE 2: Rewrite the following sentences using conditional sentences type 2.

1. They are poor, so they can’t help us.

2. He doesn’t do this homework. He is always punished.

3. He doesn’t have enough time. He can’t help me.

4. She doesn’t take any exercise, so she is overweight.

5. He doesn’t have a bicycle, so he always goes to class late.

6. I am bad at English, so I can’t do homework.

7. He doesn’t practise speaking French, so he doesn’t speak it fluently.

8. The meeting can be cancelled because it snows heavily.

9. We don’t go because it will rain.

10. John is fat because he eats so many chips.

EXERCISE 3: Rewrite the following sentences using conditional sentences type 3

1. He didn’t hurry, so he missed the train.

2. We didn’t go because it rained.

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

4. He lost his job because he was late everyday.

5. The dress was so expensive. She could not buy it.

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

7. My brother left the car keys, so I had to pick him up at the station,

8. We didn’t go on holiday because we didn’t have enough money.

9. He didn’t have the ticket to the game last week. He wasn’t be able to get in.

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

Rewrite the sentences without changing the meaning.

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

→ If ..................................................................................................................................

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

→ If ..................................................................................................................................

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

→ If ..................................................................................................................................

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

→ If ..................................................................................................................................

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

→ If ..................................................................................................................................

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

→ If ..................................................................................................................................

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

→ If ..................................................................................................................................

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

→ If ..................................................................................................................................

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

→ If ..................................................................................................................................

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

→ If ..................................................................................................................................

Bài 1:  Viết lại các câu sau dùng câu ĐK 2

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

->if………….

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

->If………………….

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

->If I ………...

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

→ If ……………………..

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

→ If ………………. ..

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

→ If . ………………

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

→ If . ……………………

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

→ If …………….. .

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 ____________________________________________.

2. Hurry up or you will be late.

→ If ____________________________________________.

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

→ If ____________________________________________.

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

→ If ____________________________________________.

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

→ If ____________________________________________.

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

→ If ____________________________________________.

7. If I have time, I’ll help you.

→ Unless ____________________________________________.

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

→ If ____________________________________________.

9. Dick often causes accidents because he drives carelessly.

→ If ____________________________________________.

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

→ If ____________________________________________.

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

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

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

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

5.      She is very shy, so she doesn’t enjoy the party.
=> If……………………………………………………………..

6.      I will get a work permit. I will stay for another month.
=> If……………………………………………………………..

7.      He doesn’t take any exercises. He is so unhealthy
=> If……………………………………………………………….

8.      We can’t get the ticket because I don’t have the right change.
=> If………………………………………………………………..

9.      Study hard or you won’t pass the exam.
=> If…………………………………………………………………..

10.  Don’t be impatient or you will make mistakes.
=> If……………………………………………………………………..

11.  I didn’t eat lunch, I feel hungry now.
=> If I…………..………………………………….

12.  I only come if they invite me.
=> unless……………………………………………….

13.  He didn’t revise all his lessons, he failed the exam.
=> If he………………………………………………………..

14.  The park is over there, only 5 minutes’ walk.
=> If you walk……………………………………………….

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

=>Unless……………………………………………………………………………………

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

=> Should……………………………………………………………………………….     

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

=> If it ………………………………………………………………………………           

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

=>Had ………………………………………………………………………………           

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

=> Unless………………………………………………………………………………       

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

=> Were I………………………………………………………………………………      

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

=> If he………………………………………………………………………………

22.  Don’t tell lies to your boss or you’ll be fired at once.

=> If……………………………………………………………………………

23.  She got married at such an early age: otherwise, she would be at university now.

=> Had ………………………………………………………………………….

  51.She doesn’t go to China with us.

→We wish ………………………………………………………………………………………………

  52.He can’t buy this bike because he doesn’t have enough money.

→If ………………………………………………………………………………………………………

  53.Study hard or you will fail the final exam.

→If ………………………………………………………………………………………………………

  54.I’m sorry, I cant speak English fluently.

→I wish …………………………………………………………………………………………………

  55.It’s a pity that you aren’t here now.

→I wish ………………………………………………………………………………………………….

  56.This problem seems diffficult for her.

→She wishes ……………………………………………………………………………………………

  57.Water these flowers or they will die.

→Unless …………………………………………………………………………………………………

  58.You practise your English regularly, and your English will improve.

→If ………………………………………………………………………………………………………

  59.The students don’t study hard.

→I wish …………………………………………………………………………………………………

  60.He spent 2 hours writing the letter.

→It took …………………………………………………………………………………………………

  61.”Will you visit the Taj Mahal ?”He asked me.

→He asked me …………………………………………………………………………………………..

  62.Peter usually played soccer but now he doesn’t play anymore.

→Peter used ……………………………………………………………………………………………                                                                                                        

  63.I don’t have free time, so I can’t help you.

→If ………………………………………………………………………………………………………  

  64.They built that house 100 years ago.

→That house ……………………………………………………………………………………………

  65.I lent your book. It was written by a friend of mine. She lives in France.

→That book I ……………………………………………………………………………………………

  66.He intended to make a long journey with her 
→ He had………………………………………………………………………………………………  

67. He is going to visit her friends in HCM city 
→He is going to ……………………………………………………………………………………
  68. He decided to buy his house 2 years ago -
→He made …………………………………………………………………………………………

  69. He has no intention of leaving the city 
→He doesn't ………………………………………………………………………………………  

70. In stratford-on-Avon, we saw Shakespare's birthplace 
→We saw the house ……………………………………………………………………………….
  71. I'm sure you didn't lock the front door. Here is the key 
→You can't ……………………………………………………………………………………………..
  72. You don't need to talk so loudly
→There is ………………………………………………………………………………………………
  73.The train couldn't run because of the snow.

 →The snow ……………………………………………………………………………………………..
  74.He learned to drive when he was 10 years old.
→He has ………………………………………………………………………………………………...
  75. He failed to win the race.
→He didn't ………………………………………………………………………………………………
  76. A train leaves at eight o'clock every morning.
→There is ………………………………………………………………………………………………..
  77. My suit needs to be cleaned before the meeting.
→I must ………………………………………………………………………………………………...
  78. "You stole my best cassette, Amanda".
→William accused ……………………………………………………………………………………...
  79. The train journey from London to Bristol takes two hours.
→ It is a ………………………………………………………………………………………………….
  80. It was careless of you to leave the window open lastnight.
→You shouldn't ………………………………………………………………………………………..
  81. Alice finds it easy to make friends.
→Alice has no ………………………………………………………………………………………….
  82. The man injured in the accident was taken to the hospital.
→The man who ………………………………………………………………………………………..
  83. Nam and his family went on a trip to their home village for two days. 
→Nam and ……………………………………………………………………………………………...

  84. They haven't phoned us for a month.
→It has been ……………………………………………………………………………………………
85. Excuse me, aren't you employed by that company?
→ Excuse me, don't you…………………………………………………………………………………
  86. I've never been to a less exciting concert.
→It was …………………………………………………………………………………………………
  87. That old key board is not worth repairing.
→It is pointles …………………………………………………………………………………………..
  88. I can't hardly understand a word of this.
→ (difficulty) …………………………………………………………………………………………...

  89. "Why don't you postpone your trip till the fall, Jim?"
→Mary postpone …………………………………………………………………………………... off.
  90. Was it your idea that I should pay?
→Did you mean ………………………………………………………………………………………...
  91. I was never shown you how to operate that machine.
→At no time …………………………………………………………………………………………….
  92. We have no definite plans to go away.
→ We are not ……………………………………………………………………………………………
  93. A locksmith makes and repairs locks.
→A locksmith is ………………………………………………………………………………………...
  94. They have no money to buy this house.
→They don't ……………………………………………………………………………………………
  95. Orginally, tennis was an indoor game.
→Tennis used …………………………………………………………………………………………

  96.I used to own a dog. People came to the door. The dog never barked at them.

→The dog ………………………………………………………………………………………………

  97.I bought my car from a woman. She lives in a house. You can see the house over there.

→The woman I …………………………………………………………………………………………

  98.My friend Bill has decidedto buy a motorbike. His car was stolen last week.

→My friend Bill, ………………………………………………………………………………………..

  99.I bought a new car. It cost me a lot of money.

→The new ………………………………………………………………………………………………

  100.Please don’t leave your motorbike outside the back door.

→I’d rather ……………………………………………………………………………………………..

51.She doesn’t go to China with us.
→We wish ………………………………………………………………………………………………
52.He can’t buy this bike because he doesn’t have enough money.

3

→If ………………………………………………………………………………………………………
53.Study hard or you will fail the final exam.
→If ………………………………………………………………………………………………………
54.I’m sorry, I cant speak English fluently.
→I wish …………………………………………………………………………………………………
55.It’s a pity that you aren’t here now.
→I wish ………………………………………………………………………………………………….
56.This problem seems diffficult for her.
→She wishes ……………………………………………………………………………………………
57.Water these flowers or they will die.
→Unless …………………………………………………………………………………………………
58.You practise your English regularly, and your English will improve.
→If ………………………………………………………………………………………………………
59.The students don’t study hard.
→I wish …………………………………………………………………………………………………
60.He spent 2 hours writing the letter.
→It took …………………………………………………………………………………………………