3.I___forget my key,or I won't get in.

A.must      B.mustn't       C.should         D.don't have to

4.You___go off on your own at night.It's not safe at all.

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

5.The police told Nick___keep his dog under control or she would definitely hurt somebody in the room.

A.could       B.might     C.can      D.must

(GIÚP MIK VỚI Ạ,MIK ĐANG CẦN GẤP!!!!!!)

 14.Write toor ✘ before the verbs.

(Viết to hoặc ✘ trước động từ.)

1 I really want ………… go out.

2 She must ………… try her best.

3 Do you need ………… stay?

4 We don't have ………… pay in cash.

5 Would you like ………… dance?

6 You cannot ………… do the test.

7 They shouldn't ………… eat much sugar. 

8 Did you want ………… find your pen?

Choose the correct answers A, B, C, or D to complete the following sentences.

1. If you want to maintain a healthy weight, you _________ have snacks between meals.

A. shouldn't             B. should            C. must              D. don't have to

2. I __________ strictly follow the doctor’s instructions if I want to get better quickly.

A. shouldn't           B. must                C. can                D. don't have to

3. The government ___________ improve the infrastructure of big cities to boost the economy.

A. mustn't             B. doesn't have to            C. should             D. didn't have to

4. People living in high-rise buildings ___________ obey the safety rules and regulations strictly.

A. shouldn't              B. mustn't             C. may              D. have to

5. Lots of women in the past ___________ stay at home, look after their children, and do all housework.

A. must                 B. should                C. had to             D. have to

6. My parents respect my career choice, so I __________ follow in their footsteps.

A. mustn’t             B. don‘t have to           C. should            D. shouldn't

1. He is unreliable. what he says___ be belived

1. cannot B. must not C. may not D. might not

2. I was reading the book last night before I went to bed. I never took it out of this room. It___ be lying around here somewhere. Where __it be?

A. might- needn't B. can-should C. shoudn't-may D. must can

3. When you have a small child in the house, you___leave small objects lying around. SUch objects___ be swallowed, causing serious injury or even death

A. should-must B. should not- might C. needn't -may D. mustn't- can't

4. Jenny's engagement ring was precious. It ___ have cost a fortune

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

5. I___ be at the meeting by 10:00 I will probably ___ take a taxi if I want to be on time

A. must- have to B. may- must C. should- needn't D. mustn't- shouldn't

6. You____ forget to pay the rent tomorrow. The landlord is very stict about paying on time

A. needn't B. mustn't C/ do not have to D. may not

7. Iam not deaf. You__ shout

A. must B. mustn't C. need D. needn't

8. The lamp_____ be broken. Maybe the light bulb just burned out

A. should not B. might not C. must have been D. shiuld have been

9. It is a stop secret. You___tell anyone about it

A. Mustn't B. needn't C. mightn't D won't

10. We have plenty of time for doing the work. We __ be hurried

A. needn't B. shouldn't C. mustn't D. mayn't

11. You ___ touch that switch, whatvever you do

A. mustn't B. needn't C. won't D. wouldn't

C. Dien tu con thieu vao cho cham

............... Precautions for Older People. You ............. to clean up spills quickly. You should not climb ............ chairs or furniture. You must have a smoke alarm .................. each floor and test them ............... month. You must not take .............. appliances into the bathroom, and never touch electrical appliances .................. wet hands. You must not put plants or a vase of flowers on a television set or other electrical ................ .You must ............. smoke in bed. You must not take other people 's medicine or .............. others take yours.

1. They prayed that their daughter ........ be lucky again

a. may b. wil c. could d. might

2. He ............. all that money , so she could save some

a. didn't need to spend b. needn't have spent

c. shouldn't spent d. oughtn't spend

3. he spent all that money last week . He ...... so much

a. didn't need to spend b. shouldn't spent

c.needn't have spend d. didn't have to spend

4. he had to work hard so that he .......... his family

a. may support b. supported c. can support d. might support

5. they have plenty of time , so they need not ....

a, be hurry b. to hurry c. hurry d, to be hurry

6. you're having a sore throat . You'd better ....... to the doctor

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

7. I would rather ........ poor but happy than become rich without happiness

a. being b. be c. to be d. was

8. sit down please ......... a cup of tea ?

a. Do you like b. do you like to drink

c. would you like d. will you like

9. Must you come when yur neighbour calls ?

No , I .............

a. must not b. mustn't c. don't have to d. must not come

10 . May i have 2 tickets , please ? ............. two tickets , please ?

a.. you must given me b. you have got to give me

c. could i have d. you may give me

11. he will have to stay in hospital . That's what he ...........

a. has done b. must do c. must be doing d. must have done

12. do you have to buy this hat ? No , I................ It isn't neccessary

a .mustn't b. won't c. needn't d. don't needn't

13. A man have never too many ties . It's .............

a. unable b. impossible c. improbable d. incapable

14. it could not tell the difference between Indian music and jazz

a. might not b. may not c. mustn't d. wasn't able to

1. I'm not sure. I........................come a few minutes late.

A. may B. must C. mustn't D. needn't

2. Bring your umbrella. It..................rain later today.

A. must B. may C. mustn't D. needn't

3. ''What are you doing this weekend?''

''I haven't decided yet. I................go on a picnic with my family''.

A. may B. may not C. must D. needn't

4. ''I didn't have time for breakfast this morning.''

''You.............be very hungry now.''

A. might B. may C. mustn't D. must

5. It's quite urgent. You........type the reports today.

A. must B. might C. needn't D. would

6. Don't worry if you're a minute or two late. We..........be exactly on time for the meeting.

A. must B. mustn't C. needn't D. may

7. Jane's glasses are on the desk, so she.......be here.

A. must B. shall C. ought D. will

8. The gas tank is almost empty. We...........stop at the next service station.

A. mustn't B. might C. needn't D. had better

9. A person........eat in order to live.

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

10. A person........eat a balanced diet.

A. should B. ought C. may D. must

11. I don't have onough money to take the bus, so I............walk home.

A. should B. mustn't C. have to D. needn't

12. You.........eat these mushrooms. They are very poisonous.

A. needn't B. can't C. mustn't D. won't

13. I can't find my umbrella. I........it in the restaurant last night.

A. must have left B. had left C. left D. might leave

14. I had a test this morning. I didn't do it well. I........last night.

A. should study B. must have studied C. should have studied D. must study

15. Tom goes to school very often, but he was absent yesterday. He..............ill

A. must be B. must have been C. might be D. might have been.