mustn't

- must + V: phải làm gì (mang tính bắt buộc)

- mustn't + V: cấm làm gì, buộc người khác không được làm gì

mustn't

ở đây sẽ mang nghĩa theo ý thức của người nói

1. Don't/ wake/ the/ baby/ so/ much/ noise/ we/ mustn't/ make

Don't make so much noise. We mustn't wake the baby.

9. DOn't make so much noise. You mustn't wake up the baby

10. Would you like to leave a message?

On Saturday, our family ... much time together because we are free

A. spends.          B spent

Please don't make so much noise. I ... concentrate on my studies

A. mustn't.           B. can't

Please don't make so much noise. I ... concentrate on my studies
A. mustn't.           B. can't

Đáp án : B

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. A

2. A

I . put the words or phrases in the right order to make a meaningful sentence

1. I / don't / want / I / pay / you / to / pay / me / will / for / for / myself

=> I don't want you to pay for me, I will pay for myself.

2. keep / reach / the children's / out of / these medicines

=> Keel these medicines out of the children's reach.

3. has / Jane / to / go / a long time / away / for

=> Jane has to go away for a long time.

4. I / lost / the car / and / my keys / somewhere / between / the house

=> I lost my keys somewhere between the cars and the house.

5. Please / do / it / help / me / I / can't / myself

=> Please help me I can't do it myself.

6. Mai / swept / the / floor / kitchen / evening / yesterday

=> Mai swept the kitchen floor yesterday evening.

7. Don't / wake / the / baby / so / much / noise / we / mustn't / make

=> Don't make so much noise we musn't wake the baby up.

8. Tri / have / is / he / rich / doesn't / to / work / extremely

=> Tri is extremely rich he doesn't have to work.

seeing - to learn - is always making - are working - took - was doing - will give - has worked