（一）基本用法
1.----_____you give me a hand? I can't move the box by myself:
---No problem.
A. Could B. Should C.Must D. Need
2. According to the traffic law , children under 12______ride bicycles on the road.
A.won't B.wouldn’t C. needn't D.mustn't
3. _______you smell something burning? Go and see what's happening.
A. Can B. May C.Must D. Need
4.By the time she was eight, Linda_______read English and French.
A.could B. must C. need D. may
5. ---I don't care what people think.
---Well, you_____.Some opinions are worth weighing.
A. might B.should C.could D. would
6. ---Allen, shall we go to the bookstore this afternoon?
---I'm sorry, David, but I_______ meet my cousin at the train station.
A. have to B.can C. may D. could
7.My classmate is jumping so far! I_________believe my eyes.
A. shouldn't B.needn't C.mustn't D. can't
8.---Mum, why do I have to wash hands so many times a day?
---For your health, you________ be too careful.
A. can't B. shouldn't C. mustn't D. needn't
9. Mother had a hard time getting Helen up in the morning. She called and called, but Helen _________wake up.
A. wouldn't B. mustn't C. needn't D. shouldn't
10.You_______smoke here! Look at the sign. It says " No smoking".
A. needn't B. mustn't C. can D. may
11. You ______be able to control all the things that happen to you,but you can decide not to be reduced by them.
A. need not B. may not C. must not D. should not
12.---Must we clean the classroom at once?
---No, you________.You may clean it after school.
A. mustn’t B. needn't C. can't
13. I________take too much money with me. I like to pay on the mobile phone.
A. mustn't B. shouldn't C. needn't
4. Only plants and animals that need very little water_______ live in a desert.
A. can B. need C. must
15.Polluted air and water_______ kill plants , animals, and even people.
A. can B. can't C. should D. shouldn't
16. With the help of Air Classroom, students_________keep learning even with schools closed.
A. can B. must C. should
17. ---Must the children get up at six tomorrow morning?
---No, they_______.Let them have a good sleep on weekends.
A. can't B. needn't C. mustn’t D. may not
18.---May I eat out with my friends, Mum?
---No, you_______.People shouldn't get together at this time.
A. can't B. may not C. needn't
（二）表推测
1.---Is this book Linda's?
---It______be hers. Sandy's name is on the cover.
A. can’t B. mustn't C. needn't
2. I______be late, so don’t wait for me to start the meeting.
A. mustn't B. needn't C. need D. may
3. You are not allowed to play with fire in the forest. It _______kill plants, animals and even people.
A. might B. might not C. should D. should not
4.---Look ! People outside are wearing thick coats.
---The weather_______be very cold.
A. might B. must C. can't
5. I walked here today, so this bike_______ be mine.
A. can B. mustn't C. can't D. must
6.---Where's Jane?
---I'm not sure. She ______in the library.
A. might be B. must be C. can't be
7.---Look! This restaurant is always crowded.
---The food here______be very delicious. Let's go and have a taste.
A. need B. can't C. must
8.---0n my way to the bookstore, I saw Mary hanging out with her friends.
---It_______be her. She has gone to Beijing.
A. can't B. mustn't C. might D. could
9.If we don't protect nature, some wildlife________die out in the future.
A. need B. may C. can't D. shouldn't
10.---In China, many students feel stressed because of too much homework.
---Don’t worry. Our government has realized this problem. I'm sure there be______ good news for them soon.
A. can B. must C. should D. need下载本文
