1. have to

complete the sentences with"must,mustn't,have to or ought to

1 we don't..have to.......go home before 17:00 every day

1. You must/mustn't respect older people. You can learn some valuable lessons from them.

2. We don't have to/have to wear uniforms on weekdays. It's the rule at our school.

3. You should/mustn't ask your parents for permission if you want to colour your hair.

4. In the past, women had to/must do all house work. It was one of their duties.

1: must

2: have to

3: should

4: had to

Complete the sentence with must or have / has to . Sometimes both are possible.

1. Vietnamese children _____have to_____ wear uniform when they go to school.

2. Last night my sister was ill . We _____had to/ must_____ call the doctor.

3. I have bad toothache . I _____must_____ make an appointment with the dentist.

4. I don't want to _______have to_____ wait in a queue for ages.

5. She _______has to______ work on Saturday morning.

6. When you come to California, you ______must______ come and see us soon.

7. This is a terrible party . We ______must_____ go home.

8. If there are no taxis we'll _______have to_____ walk.

9. Daniel ______must_____ go to the bank . He hasn't any money.

10. You really ______must/ have to_____ hurry up , Vicky . We don't want to be late.

1. Vietnamese children ___have to _______ wear uniform when they go to school.

2. Last night my sister was ill . We __must ________ call the doctor.

3. I have bad toothache . I ____have to ______ make an appointment with the dentist.

4. I don't want to _______have to _____ wait in a queue for ages.

5. She ___has to __________ work on Saturday morning.

6. When you come to California, you ___have to _________ come and see us soon.

7. This is a terrible party . We ___must ________ go home.

8. If there are no taxis we'll ____have to ________ walk.

9. Daniel ____has to _______ go to the bank . Hehasn't any money.

10. You really _____have to ______ hurry up , Vicky . We don't want to be late.

Chúc bạn học tốt !!!

1. Vietnamese children have to wear uniform when they go to school.

2. Last night my sister was ill . We had to call the doctor.

3. I have bad toothache . I must make an appointment with the dentist.

4. I don't want to have to wait in a queue for ages.

5. She has to work on Saturday morning.

6. When you come to California, you must come and see us soon.

7. This is a terrible party . We must go home.

8. If there are no taxis we'll have to walk.

9. Daniel must go to the bank . Hehasn't any money.

10. You really have to hurry up , Vicky . We don't want to be late.

Complete the sentence with must or have / has to . Sometimes both are possible.

1. Vietnamese children _____have to_____ wear uniform when they go to school.

2. Last night my sister was ill . We _____had to/must_____ call the doctor.

3. I have bad toothache . I _____must_____ make an appointment with the dentist.

4. I don't want to _______have to_____ wait in a queue for ages.

5. She _______has to______ work on Saturday morning.

6. When you come to California, you ______must______ come and see us soon.

7. This is a terrible party . We ______must_____ go home.

8. If there are no taxis we'll _______have to_____ walk.

9. Daniel ______must_____ go to the bank . He hasn't any money.

10. You really ______must/ have to_____ hurry up , Vicky . We don't want to be late.

a) In đậm

Freya: I can't find my camera, Archie.

Archie: There it is. It's under your bag. Why do you have to bring it to class?

Freya: I must take it to my photography class today. By the way, I didn't understand that email you sent

me yesterday.

Archie: I didn't send any emails yesterday.

Freya: Well, you might have sent it earlier. But I got it yesterday.

Archie: I can't have sent you an email. My phone hasn't been working for a week.

Freya: Somebody must have used your account. The email had a link to a competition, but when I clicked on it, nothing happened.

Archie: Oh no! You shouldn't have clicked on the link. You've possibly downloaded some malware onto your phone.

Freya: That's terrible! You should have warned me earlier.

Archie: I didn't know! Anyway, you might not have downloaded anything. It's possible that you were lucky. You just need to wait and see.

Freya: Anyway, you need to warn your other friends. That email could have gone to everybody in your address book!

b)

1 A hotel receptionist must be good at communication.

(Lễ tân khách sạn phải giỏi giao tiếp.)

2 You have to pay for the tickets in advance.

(Bạn phải trả tiền vé trước.)

3 Examinees must switch off all modern gadgets during the exams.

(Thí sinh phải tắt tất cả các thiết bị hiện đại trong khi làm bài thi.)

4 You must not leave litter lying around.

(Bạn không được để rác bừa bãi.)

1. must/ have to/ need to

2. should/ shouldn't

3. mustn't

4. don't have to/ don't need to

1. We use MUST to say something is necessary because of a situation or a rule.

We use HAVE TO and NEED TO when the speaker feels that it is very important to do something, or when we talk about written rules.

2. We use SHOULD and its negative form SHOULDN'T to give advice, or to say something is a good or bad idea.

3. We use MUSTN'T to talk about something that is prohibited.

4. We use DON'T HAVE TO and DON'T NEED TO to say something isn’t necessary.

1. Vietnamese children have to wear uniform when they go to school
2. last night my sister was ill. We __must____ call the doctor
3. I have bad toothache. I ___have to __ make an appointment with the dentist
4. I don't want to ___have to ___ wait in a queue for ages
5. She __must ____ work on Saturday morning
6. When you come to Califonia, you __must ___ come and see us soon
7. This is a terrible party. We __must ____ go home
8. If there are no taxis we'll _have to ____ walk
9. Daniel __have to _____ go to the bank. He hasn't any money
10. You really ____must____ hurry up, Vicky. We don't want to be late

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