1: we didn't visit the museum because we didn't have time.

---> If we had had time, we would have visited the museum.

2: she got tired because she worked so hard.

---> If she hadn't worked so hard, she wouldn't have gotten tired.

3: he didn't pass the exam because he didn't work hard

---> If he had worked hard, he would have passed the exam.

4: they didn't attend the lectuer, so they were punished

----> If they had attended the lecture, they wouldn't have been punished.

5: I didn't have an unbrella with me so I got wet.

----> I wouldn't have gotten wet if I had had an umbrella.

6: you drink too much coffee , that's why you can't sleep

-----> If you didn't drink too much coffee, you could sleep.

7:dick is in prison because a detective recognized him.

----> If a detective hadn't recognized Dick, he wouldn't be in prison.

8: I don't have any money , so I can't lend you any .

---> If I had some money, I could lend you some.

9: I didn't have the money , so I didn't buy a new suit.

----> If I had had the money, I would have bought a new suit.

10: she doesn't live in london because she doesn't know anyone there.

----> If she knew someone in London, she would live there.

11: I can't live in the country because I don't find a job there .

---->If I found a job in the country, I could live here

Rewrite the following sentences

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

->Were he not to smoke too much, he could get rid of his cough.

2.He doesn't take any exercises. He is so unhealthy

->Were he to take some exercise, we would be so healthy.

3.We can't get the ticket because I don't have the right change.

->Were I to have the right change, we could get the ticket.

4.Study hard or you won't pass the exam.

-> Should you study hard, you will pass the exam.

5.Don't be impatient or you will make mistakes.

->Should you be impatient, you will make mistakes.

6.I didn't eat lunch, I feel hungry now.

->Had I eaten lunch, I wouldn't feel hungry now.

7.I only come if they invite me.

->Unless they invite me, I won't come.

8.He didn't revise all his lesson, he failed the exam.

->Had he revised all his lesson, he wouldn't have failed the exam.

9. The park is over there, only 5 minutes walk.

->If you walk to the park, it will take you 5 minutes.

10.Leave me alone or I'll call the police.

->Unless you leave me alone, I'll call the police.

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

->Were you to take good care of the car, it wouldn't break down so often.

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

->If he were not very bad-tempered, his wife wouldn't have left him soon after marriage.

13.Don't tell lies to your boss or you'll be fired at once.

->Should you tell lies to your boss, you'll be fired at once.

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

-> Had she not got married at such an early age, she would have been at unisersity now.

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

-> Were he not to smoke too much, he couldn't get rid of his cough.

2.He doesn't take any execises. He is so unhealthy

-> Were he to take any execises, he wouldn't be so unhealthy.

3.We can't get the ticket because I don't have the right change.

-> Were I to have the right change, we couldn't get the ticket.

4.Study hard or you won't pass the exam.

-> Should you hard study, you will pass the exam.

5.Don't be impatient or you will make mistakes.

-> Should you be impatient, you won't make mistakes.

6.I didn't eat lunch, I feel hungry now.

-> Had I eaten lunch, I wouldn't feel hungry now.

7.I only come if they invite me.

-> Unless they invite me, I won't come.

8.He didn't revise all his lesson, he failed the exam.

-> Had he revised all his lesson, he woulfn't have failed the exam.

9. The park is over there, only 5 minutes walk.

-> If you walk to the park, it will take you only 5 minutes.

10.Leave me alone or I'll call the police.

-> Unless you leave me alone, I'll call the police.

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

-> Were you to take good care of the car, it wouldn't break down so often.

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

-> If he wasn't very bad-tempered, his wife wouldn't have left him soon after marriage.

13.Don't tell lies to your boss or you'll be fired at once.

-> Should you tell lies to your boss, you'll be fired at once.

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

-> Had she not got married at such an early age, she would be at unisersity now.

EX : Complete each of the following sentences in such a way that it means the same as the sentence printed before it.

1/ we didn't know your phone number ,so we could not contact you

If we had known your phone number, we could have contacted you

2/ Because Simon doesn't live near his mother,he can't visit her often

If Simon lived near his mother, he could visit her often.

3/ she didn't hurry , so she missed the train

If she had hurried, she would have caught the train.

6/ John is fat because he eats so many chips

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

7/ Bill never does anything if you don't tell him what to do.

-> Unless................... you tell Tom what to do, he will never do anything.........................................

8/ They don't have enough time so they cannot do me a favour.

If they had enough time, they could do me a favor.

9/we did not visit the museum because we had no time .

If we had had time, we would have visited the museum.

10/ we can't buy this car because it is very expensive

This car is too expensive for me to buy.

11/ Susan felf sick because he ate 4 cream cakes

If Susan hadn’t ate 4 cream cakes, he wouldn’t have felt sick

EX : Complete each of the following sentences in such a way that it means the same as the sentence printed before it.

1/ we didn't know your phone number ,so we could not contact you

=> If we had known your phone number , we would have contacted you

2/ Because Simon doesn't live near his mother,he can't visit her often

=> If Simon lived near his mother , he could visit her often

3/ she didn't hurry , so she missed the train

=> If she had hurried , she wouldn't have missed the train

6/ John is fat because he eats so many chips

=> If John didn't eat so many chips , he wouldn't be fat

7/ Bill never does anything if you don't tell him what to do.

-> Unless....Bill never does anything , you tell him what to do ........

8/ They don't have enough time so they cannot do me a favour.

=> If they had enough time , they could do me a favour

9/we did not visit the museum because we had no time

=> If we had had time , we would have visited the museum

10/ we can't buy this car because it is very expensive

=> If it weren't very expensive , we could buy this car

11/ Susan felf sick because he ate 4 cream cakes.

=> If Susan hadn't eaten 4 cream cakes , he wouldn't have felt sick

Write a sentence with if for each situation

1.he didn't prepare for the interview. So he didn't get job.

If he had prepared for the interview, he would have gotten the job.

2.we came home from our holiday early because we ran our of money.

If we had not run out of money, we would not have come home from our holiday early.

3.l can't take much exerciise because l don't have enough free time.

If I had enough free time, I would/could take much exercise.

4.the house didn't burn down because the fire brigade came immediately.

The house would have burned down if the brigade had not come immediately.

5.the men were wearing protective clothing. So they were all quite safe.

If the men had not been wearing protective clothing, they would not have been all quite safe.

6.people don't realize how Important ít is to conserve energy. So they do nothing about it.

If people realized how important it is to conserve energy, they would/ might do something about it.

7. I took the job because I didn'n know how difficult ít was.

I would not have taken the job if I had known how difficult it was.

8. My father didn'n eam much money. So life wasn't easy for us.

If my father had earned much money, life would have been easy for us/ would not have been difficult/hard for us.

9. Daniel really wanted to buy the book. But be didn't have enough money.

If Daniel had had enough money, he would/must have bought the book.

10. There isn't any truth in her allegations. So i won't resign.

If there was/ were any truth in her allegations, I would resign.

11. Andrew watted to ask frank Sinatra for his autograph. But he wasn't brave enough.

If Andrew had been brave enough, he would have asked Frank Sinatra for his autograph.

12. I don't know anything about plumbing. So i can't fix the Leak in the sink myseif.

If I knew something about plumbing, I could fix the leak in the sink myself.

2. would -> wouldn't

5 viết lại bằng câu đk loại 1 nhé

If he reads in bad light, he will ruin his eyes

Hãy hoàn tất câu thứ hai để có nghĩa tương đương như câu thứ nhất, dùng câu điều kiện
1. He doesn't come, so I can't speak to him about it
-> If......................he came, i could speak to him about it........................
2. His bicycle is broken, so his friend gives him a lift
-> If.....................his bicycle wasn't broken, his friend would give him a lift...........................
3. You didn't leave soon, so you didn't get there by noon
​-> If..................you had left soon, you would have got there by noon..............................
4. He was in a hurry, so he left his briefcase on the bus
​-> If.....................he hadn't been in a hurry, he wouldn't have left his briefcase on the bus...........................
5. He will ruin his eyes because he reads in bad light
​-> If..................he didn't read in bad light, he wouldn't ruin his eyes..............................
6. He didn't understand the lesson because he didn't listen carefully
​-> If.....................he had listened carefully, he would have understood the lesson...........................
7. She doesn't ask for help because she doesn't know that man
​-> If.....................she knew that man, she would ask for help...........................
8. The newspaper didn't print the story because it wasn't true
​​-> If.....................the story had been true, the newspaper would have printed it...........................

1. I'll buy that book. I'll give it to you.

=> If I buy that book, I'll give it to you.

2. She'll get some tickets. She'll take us to the circus.

=> If she gets some tickets, she'll take us to the circus

3. As she is often absent from class, she can't keep pace with her classmate.

=> If she wasn't often absent from class, she could keep pace with her classmate.

4. I couldn't write to Alice because I didn't know her dress

=> If I had known her dress, I could have written to Alice.

5. I don't know the answer, so I can't tell you.

=> If I knew the answer, I could tell you.

6. My friend will not go to London. He will not see that play.

=> If my friend goes to London, he'll see that play

7. We got lost because we didn't have map.

=> If we had had map, we wouldn't have got lost

8. His friends were so late, so they missed the train.

=> If his friends hadn't been so late, they wouldn't have missed the train

9. Today isn't Sunday, so the pupils can't go swimming.

=> If today were Sunday, the pupils could have gone swimming.

10. The heavy rain kept everybody from going out.

=> If it hadn't rained heavily, everbody wouldn't have been kept from going out.

Giúp em viết lại các câu sau về dạng mệnh đề If vs ạ.

1. I'll buy that book. I'll give it to you.

=>If I buy that book,I'll give it to you.

2. She'll get some tickets. She'll take us to the circus.

=>If she get some tickets,she'll take us to the circus.

I. Đặt câu hỏi cho từ in đậm.

1. I travelled to my friend's hometown by train

==>How did you travel to your friend's hometown?

2. I have already sên the film at the cinema

==>Where have you already seen the film?

3. My english teacher ia living in a small house

==>Where is your Eg teacher living?

4. I like football because it makes me excited.

=>Why do you like football?

5. We bought the souvenirs in Ha long Bay last summer.

==>Where did you buy the souvernirs last summer?

II. Viết lại câu.

1. Because I didn't know that there was a tét yesterday, I didn't study

==> I didn't know that there was a tét yesterday so I didn't study.

2. We came by bus because there were no taxis.

=>there were no taxis so We came by bus.

3. We don't visit the museum because we don't have time.

=>We don't have time so we don't visit the museum.

4. You didn't tell me we had run out of bread, so I didn't buy any.

=>Because You didn't tell me we had run out of bread, I didn't buy any.

5. He doesn't work hard at school so he gets many bad marks .

=>Because He doesn't work hard at school ,he gets many bad marks .

6. She didn't know you were in hospital, so she didn't visit you.

=>Because She didn't know you were in hospital,she didn't visit you.