1. Do I have to take that English course? No, you ... (haven't/ don't have/ mustn't/ needn't)

2. Was it a good discussion? Yes, ...... were exchanged among the participants (much more ideas/ many more ideas/ much number of ideas/ many much of idea)

3. I have been working with this puzzle for two hours. It must be a hard one ... (solve/ solved/ to solve/ solving)

4. Asteriods are minor plantes. Some are fairly large bodies, but ... resemble mountains. (most/ mostly/ almost/ the most)

5. This hotel is really expensive. They ... you 200 dollars a day (price/ cost/ take/ charge)

6. She devoted most of her life .... dectective novles. (to having written/ to write/ to writing/ to have written)

7. But why did the police suspect you? It does not make ... to me (reason/ right sense/ truth)

3. Read the Learn this! box and complete the rules. Use must, mustn't, needn't and don't have to. Use your answers to exercise 2 to help you.

(Đọc hộp Learn this! và hoàn thành các quy tắc. Dùng must, mustn't, needn't and don't have to. Sử dụng các câu trả lời trong bài 2 để giúp bạn.)

LEARN THIS! must, mustn't and needn't/ don't have to

a. We use (1) _____ to say that something is necessary or very important to do.

b. We use (2) _____ and (3) _____ to say that something is not necessary.

c. We use (4) _____ to say that something is prohibited (a negative order)

Note: We can also use passive forms after modal verbs.

Helmet must be worn at all times.

Choose the correct words.

1. You mustn't / don’t have to / don’t must cheat in exams.

2. If you need help, you should to / need / should talk to your teacher.

3. I’m not thirsty, so I shouldn’t / don’t need / needn't to stop and have a drink.

4. You mustn't / don’t need / don’t have to do this extra homework. It’s your choice.

5. We must / have / need arrive on time to school every day.

6. Rosie has / have / need to catch the next bus.

39. I .......  for her. She didn't come at all.

A. may have waited

B. mustn't have waited

C. ought to have waited

D. needn't have waited

40.You .....   an umbrella because it didn't rain.

A. needn't have brought

B.should have brought

C.may have bought

D.might have bought

41.I ..... have prepared all that food. they phoned to say the wouldn't be coming

A.needn't B.should  C.can't D.must

42.YOU .... have practised a lot before you gave your speech. it was really good 

A.needn't B.should C.can't D.must

43.his letter is full of mistakes. he .... the mistakes carefully before sending it

A.must have checked

B.should have checked

C.could have checked

D.can have checked

44. The television isn't working. It ... during the move.

A. should have been damaged

B. needn't be damaged

C.must have been damaged

D.ought not be damaged 

45.John failed again. He ... harder

A. must have tried B. should have tried C. may have tried D. may have tried

46.Frank's wallet is lying on the coffee table. He .... it here last night.

A. must have left B. should have left C. must be leaving D.needn't leave

47.You ...... lunch. We have already eaten.

A. need preparing B. needn't have prepared C.should prepare D. should have prepared

48. If I had gone to the University of Miami, I ... in their Spanish immersion program.

A. should' participate

B. needn't participate

C. could have participated

D. must have participated

49.Theresa walked past me without saying a word. She .. .me.

A. can't have seen

B. can't see

C. can't have been seen

D. can be seen

50.I think the match ........ Everybody's gone into the stadium and you can hear them cheering.

A. was started 

B. will be started

C. must started

D. must have started

51.The old man .... to hospital early. I think they did it too late.

A. must have taken  B. should have taken   C. must have been taken       D. should have been taken

52. There is no excuse for your late submission! You... to tell me you would come late

A. mightn't have finished B. should have finished

C. needn't have finished

D. must have finished

53. Adrian got surprisingly high grades in the final exam. He ... his lessons very carefully.

A. would have revised

B. needn't have revised

C. can't have revised

D. must have revised

54.I've been waiting for hours.You .... to tell me you would come late.

B. must have phoned A. oughtn't to have phoned

C. should have phoned

D. needn't have phoned

1. This plane could get over the mountain if it rose to 10000 feet . This means it ........... over the mountain

a: would succeed in getting b. got c. was able to get d. had got

2: The plane was then able to rise . This means it ........

a. could rise b. might rise c. might succeed in rising d. rose

3. Byrd knew that he would be able to reach the South Pole . It would be ...........

a. impossible b. necessary c. able d. possible

4. He ought not .... him but he did

a. to tell b. to telling c. tell d. to have told

5. I'd rather you .......... that

a.do b. don't do c. won't do d. didn't

6. ............... run so fast ? a. dose he need b. need he to c. need he d. needs he

7. He didn't need ........... out of his room in Moscow .

a. go b. to going c. going d. to go

8.I could not ... it even thought i had wanted to do so

a. had bought b. buy c. buying d. have bought

9. I left my pen this box , but it isn't there now . Someone ....... it

a. must have taken b. must take c. had to take d. had taken

10. Marry received 100 dolars from her sister . she.......... the ring she she wanted . It only cocts 10 dollars

a. buys b. had bought c. bought d. might have bought

11. It lost my honda last week . I hadn't locked it . You ....... it

a. should lock b. should have locked c. ought to lock d. could lock

12. In 1900 the word had no deaths from rabies . Scientists ........ wonderful vaccine .

a. has discovered b. discovered c. must have discovered d. should have discover

Choose the correct question tag.

1. It's easy, isn't it/ doesn't it?

2. The film was really bad, wasn't it / didn't it?

3. We aren't late, aren't we / are we?

4. She lives in that house, isn't it / doesn't she?

5. You don't like curry, don't you / do you?

6. You are going to be there, don't you / aren't you?

7. It won't rain tomorrow, is it / wil it?

8. You know where he lives, don't you / doesn't he?

Complete the sentences using the words in bold. Use two  to five words.

1. It's forbidded to feed the animals.

not         You...must not feed...the animals.

2. It isn't necessary to cut the grass; it's still quite short.

have      You ....................... the grass; it's still quite short.

3. It's prohibited to take dogs into the restaurant.

not           You ....................... into the restaurant.

4. It isn't necessary to dust the furniture; I'll do it later

need        You........................ the furniture; I'll do it late.

5. Chidren aren't allowed to run in the corridor. 

not           Chidren ................ i the corridor.

6. Sixth formers needn't wear school uniforms.

have           Sixth formers ....................... school uniforms.