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10. You (mustn't needn't have a university degree to become a police officer.
11. It's raining outside. Tim (must/may) take his umbrella
12. I can give you my car, so you (mustn't ?don't have to) buy a new one.
13. They (don't have to/ have to be in a hurry, because they have got more than enough time.
14. Tomorrow is Sunday. You (don't have to/ mustn't) get up very early
15.His eyes were so bad that he(shouldn’t/couldn’t) read the number on the board
16.My car broke down so I ( had to/could)come by bus
17.(Shouldn’t I/May I) ask some question?-Ok,go ahead
18. In most developed countries, people (mustn't/ don't need to) boil water before they drink it.
Bai 1 : Underline the correct from
1)Children must /have to start school when they are five
2)In many countries ,you should /must wear a seat belt in the car -it's the law
3)I know you like sugar but you shouldn't /don't have to eat quite so much - it's bad for
4)I'm not working tomorrow ,so I mustn't /don't have to get up early
5) The manager suggested that we have to /should try to find another hotel
6)Kids should /have to wear a life vest .That's bur regulation
7)You mustn't /don't have to smoke in here ;smoking isn't allowed in the airport
8)You must /should hand in your homework on Tuesday or your mark will be zero
9)You have to /don't have to dress up for the party .Wear whatever you fell comfortable in
10)You should /have to ask the teacher to help you if you don't understand the lesson
1 using a computer is very simple
-> it is............very simple to use a computer..................
2 Nobody helped him repair the bike
-> he repaired..............the bike by himself ......................
3 you aren't allowed to come to class late
-> You mustn't...............come to class late..................
4 No one helped Tuan repair the bicycle
-> Tuan.....................wasn't helped to repair the bicycle.................
5 There will be 20 people but we only have 10 chairs
-> we don't........................have enough chairs for 20 people..................................
6 it isn't necessary for you to go school so early
-> You don't..................need/have to go to school so early....................
7 Nobody helps Nam paint the house
-> Nam..................isn't helped to paint the house................
8 She should not eat so many sweet things
-> she ought.............not to eat so many sweet things...................
9 it isn't necessary for you to finish the work today
-> You don't..........................have to/ need to finish the work today........................................
10 I couldn't buy that house because it was expensive
-> That house wasn't...........cheap enough for me to buy .................
11 she knows little French , so she can't read a newspaper in French
->she doesn't know.............enough French to read a newspaper in French.................
12 you aren't allowed to make noise in the library
-> you mustn't...............make noise in the library.................
Tìm các lỗi sai trong những câu sau đây.
1.We have a lot of work tomorrow .You must be late!
2.You mustn’t to tell anyone what I just told you. It’s a secret.
3. We have to rush. We’ve got plenty of time.
4.When chew food, we shouldn’t talk.
5. My family has followed this tradition for many generation. - It’s good .
1. I've lost my key. I can't find it anywhere. -> Right
2. Have you eaten a lot of sweets when you were a child? -> Did you eat
3. I've bought a new car. You must come and see it. ->R
4. I've bought a new car last week. ->bought
5. When have you been yesterday evening? ->were you
6. Lucky has left school in 1999. ->left
7. I'm looking for Mike. Have you seen him? ->R
8. Have you been to Paris? "Yes, many times" ->R
9. I'm very hungry. I haven't eaten much today. ->R
10. When has this book been published. ->is-published
r=right
1. Have you ever watch this film?
Has this film ever been watched
2. Everymorning, my mom goes to market
Every morning, the market is gone to by my mom
3. They had dinner late last evening
Dinner is had late last evening
4. We shouldn't eat candy in the evening
Candy shouldn't be eaten in the evening
5. Linda can't drive car very well
Car can't be driven very well by Linda
6. Must I clean the class?
Must the class be cleaned by me
7. She has learnt English and French for 5 years
English and French have been learnt for 5 years
8. He broke my watch
My watch was broken by him
9. They didn't offer Anna the job
Anna wasn't offered the job
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
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. must you?
2. mustn't you?
1. You mustn't come late,.must you..?
2. You must have stolen my bike,.haven't you...?