1) You really have to work harder if you want to pass that examination.

2) Many children in Britian have to wear uniform when they go to school.

3) Last night Don suddenly became ill. We must call the doctor.

4) I can stay in bed tomorrow morning because I don't have to work.

5) What ever you do, you mustn't touch that switch. It's very dangerous.

6) Ann has had to wear glasses since she was eight years old.

7) I'm afraid I can't come tomorrow. I will have to work late.

8) I'm sorry I couldn't come yesterday. I had to work late.

9) You mustn't forget what I told you. It's very important .

10) Tom may have to go away next week.

11) We couldn't repair the car ourselves. We must take it to the garage. 

12) She don't have to get up so early. She gets up early because she prefers to.

13) We haven't had to leave yet. We've got plenty of time .

14) When you come to London again, you must come and see us.

15) I don't want anyone to know. You mustn't tell anyone what I said .

1) You really must work harder if you want to pass that examination

2) Many children in Britian have to wear uniform when they go to school

3) Last night Don suddenly became ill. We had to call the doctor

4) I can stay in bed tomorrow morning because I have to work

5) What ever you do, you mustn't touch that switch. It's very dangerous

6) Ann has had to wear glasses since she was eight years old

7) I'm afraid I can't come tomorrow. I have to work late

8) I'm sorry I couldn't come yesterday. I had to work late

9) You mustn't forget what I told you. It's very important 

10) Tom will have to go away next week

11) We couldn't repair the car ourselves. We had to take it to the garage 

12) She has to get up so early. She gets up early because she prefers to

13) We have had to leave yet. We've got plenty of time 

14) When you come to London again, you must come and see us

15) I don't want anyone to know. You mustn't tell anyone what I said 

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.)

Tham khảo:

1. If it rains tomorrow, I will go to school by bus.

2. Unless I get good marks, my parents will be so sad.

3. If I have free time this weekend, I will visit my grandparents.

4. If I study harder, I will get good marks.

5. Unless I go to bed early, I won’t pay attention to the lesson tomorrow.

III. Choose the best answer to complete the sentences.

1. You look really tired. You _________ take a few days off and have a holiday.

a.should b. must c. have to d. can

2. In Vietnam, you _________ take a deep bow as you do in Japan.

a. mustn’t b. don’t have to c.should d. shouldn’t

3. Sorry, but my train is at 6.00. I _________ leave now.

a. shouldn’t b.ought to c.mustn’t d. have to

4. You _________ look at other students’ work. It’s against the rules.

a. shouldn’t b.don’t have to c. mustn’t d. can’t

5. The airline only allows two piecesof luggage. You _________ pack too much!

a. shouldn’t b. mustn’t c. don’t have to d. couldn’t

III. Choose the best answer to complete the sentences.

1. You look really tired. You _________ take a few days off and have a holiday.

a.should b. must c. have to d. can

2. In Vietnam, you _________ take a deep bow as you do in Japan.

a. mustn’t b. don’t have to c.should d. shouldn’t

3. Sorry, but my train is at 6.00. I _________ leave now.

a. shouldn’t b.ought to c.mustn’t d. have to

4. You _________ look at other students’ work. It’s against the rules.

a. shouldn’t b.don’t have to c. mustn’t d. can’t

5. The airline only allows two piecesof luggage. You _________ pack too much!

a. shouldn’t b. mustn’t c. don’t have to d. couldn’t

5. Unless you rest yourself, you really will be ill.

1. Unless you study harder, you 'll get bad marks.

2. If this man is not a driver, he can’t help you move by car.

3. Unless he practices writing every day, he can't improve his writing skill.

6. Unless you are absent from school, you will not write a sick-note.

Rewrite the following sentences that keep the same meaning.(If=>Unless)

5. If you don’t rest yourself you really will be ill.

=> Unless ……………  you rest yourself, you really will be ill………………..……………………

1.If you don't study harder, you 'll get bad marks.

=> Unless ........................  you study harder, you 'll get bad marks. ..................................................

2.Unless this man is a driver, he can’t help you move by car.

=>If................................................  this man is not a driver, he can’t help you move by car..................................................................................

3. If he doesn't practice writing every day, he can't improve his writing skill.

=> Unless ...................... you are absent from school, you will not write a sick-note.....................................................

6. If you are absent from school, you have to write a sick-note.

 Unless you are absent from school, you don't have to write a sick-note.

1. You must OBEY the rules at school!

2. Do you have to wear a school UNIFORM?

3. She got good MARKS in her exams.

4. I left PRIMARY school when I was eleven.

5. You need to study or you'll FAIL the exam tomorrow!

6. I want to GET into fashion college.

1 obey

2 uniform

3 marks

4 primary

5 fail

6 get

1)A

2)B

Choose the best answer to complete the sentences.

1. You look really tired. You ... take a few days off and have a holiday.

A. Should B. Must C. Have to D. Can

2. In Vietnam, you ... take a deep bow as you do in Japan.

A. Mustn’t. B. Don’t have to

C. Should. D. Shouldn’t

a b c

1. Oh, it's later than I thought. I ___must___ go.  

2. She's a really nice person. You ___have to___ meet her.  

3. You can't turn right here. You __must____ turn left. 

4. You ___have to___ do something.  

5. I haven't phoned Lisa for ages. I __have to____ phone her tonight.  

6. I ___must __ get up early tomorrow. There are a lot of things I want to do.  

7. My eye sight isn't very good. I __must____ wear glasses for reading.  

8. Van Lam can't come out with us this evening. He ___has to___ work.  

9. It's 11 o'clock. I __must____ go now.  

10. Vietnamese children ___have to___ wear uniform when they go to school.  

11. Last night my sister was ill. We __had to____ call the doctor.  

12. I have bad toothache. I ___have to___ make an appointment with the dentist.  

13. I don't want to __have to____ wait in a queue for ages.  

14. This is a terrible party. We ___have to___ go home.  

15. If there are no taxis, we'll ____have to__ walk.  

16. Jennie ___must___ go to the bank. She hasn't had any money.