1 . 选词填空
1. He ____________(must/might) get here in time,   but I can’t be sure.
2. —How long ____________(may/must) I keep this book?
—You may keep it for two weeks.
3. He ____________ (can’t/mustn’t) have missed the train;   he arrived at the train station two hours early.
4. John, look at the time. ____________ (Must/Can) you play the piano at such a late hour?
5. She ____________(might/must) have achieved greater progress,   if you had given her more chances.
6. —That must be a mistake.
—No, it ____________ (can’t/mustn’t) be a mistake.
7. Paul did a great job in the speech contest. He ____________(must/can)have practised many times last week.
8. It is usually warm in my hometown in March, but it ____________(may/can)be rather cold sometimes.
9. I can make a lantern now,   but I ____________(can’t/couldn’t)when I was young.
10. —Can we go out and play football now?   
—No,   you ____________(can’t/mightn’t).

2 . 选词填空。
1. He ________(must/might) get here in time ,but I can’t be sure.
2. He ________(can’t/mustn’t) have missed the train; he arrrived at the train station two hours early.
3. That must be a mistake. No, it ________(can’t/mustn’t) be a mistake.
4. Paul did a great job in the speech contest. He ________(must/can) have practised many times last week.
5. He ________(may/must) be at his office now, but you’d better make a phone to make sure.
6. Look, someone’s in the room. Who ________(can/must) it be ?
7. It ________(must have /may have) rained last night, for the ground is still wet.
8. I don’t know where she is, she ________(may/must) be in Wuhan.
9. With drones’ ability to see ahead, they ________(could/should ) signal any problem, so that fast -moving trains would be able to react in time.
10. I ________(needn’t/can’t) have bought so much wine -only two people came.

3 . 用can或must填空
1. My phone ________have been stolen while I was taking a bus. I can't find it anywhere.
2. I'm hungry. I ________eat two bowls of rice now.
3. You not ________touch other people's head in this country as it will, according to local people, bring had luck to both of you.
4. —Why________ you stay in the countryside where it's not convenient to go shopping?
—Because I've found it beneficial to my health.
5. As far as I am concerned, the air crash ________not have been caused by a bomb attack.
6. You________ not be tired—you've only been working for ten minutes.
7. It is usually warm in my hometown in March, but it________ be rather cold sometimes.
8. Many rare animals are dying out. We________ find ways to protect our environment.

4 . 选词填空mustn’t/needn’t
1. Books _________be taken out of the library without permission.
2. John is ill and he__________ go to school today.

5 . 选词填空must/have to
1. He missed the bus and __________ walk home.
2. You _________ pay the money, but you needn’t do so at once.

7 . 选词填空

pull one’s weight;   mistake...for;   moreover;   in a mess;   establish; break down;   devote;   take into account;   apologise;   affect have a great effect on;   urge;   criticize;   weave;   adopt

1. It was a struggle for him to finish the experiment, with the room ________ after he finished it.
2. Apple has given in to intense pressure from Chinese state media about its customer service practices, ________ to consumers in its second-largest market.
3. Bob has never ________ and we all have to work harder to make up for his laziness.
4. I’d ________ his reputation with other farmers and business people in the community, and then make a decision about whether or not to approve a loan.
5. What you described is not true. You must ________ your imagination ________ your memory.
6. If George keeps on working so hard, he’ll ________ sooner or later.
7. The company will ________ this safety net to defend the most widespread internet worms.
8. The business manager ________ me just now for not finishing the work in time.
9. I don’t want to go skating and, ________, the ice in the river is too thin.
10. A technology ________ various aspects in our life, ranging from education to medicine, and so on.
11. She will never allow personal problems ________ her performance at work.
12. Parents should actively________ their children to take advantage of the opportunity to join sports teams.
13. China ________ economic relations with other nations since President Xi Jinping visited 22 countries last year.
14. ________ the teacher’s advice, the boy solved the problem easily.
15. ________ himself to his research work, the professor cared little about any other thing.

8 . 用方框中单词的适当形式完成下列句子，每个单词只能使用一次。

depress,        innovator,        official,        special            system,          react,             qualify

1. The government ________ announced the news to the reporters.
2. The first ________ of most participants to the experiment is fear.
3. Previous teaching experience is a necessary ________ for this job.
4. Despite the ________ result, Jenny didn’t give up and was determined to try again.
5. We must constantly ________ to keep up with the fast development of high technology.
6. Keep studying, and you can become an expert or a (an) _________ in something one day.
7. We are amazed at her ________ approach to the problem, which has been a fixed and efficient way for many years.

9 . 选词填空

well off;   be keen on;   be ashamed of;   in all ;     on behalf of ;   refer to

1. They would never _________ that matter again.
2. You should _________ yourself for telling such lies.
3. In addition, a hero must be optimistic and diligent and_________ his hard work.
4. It won't be long before the Chinese people will become _________.
5. Please allow me to thank you for your offer of help _________ my colleagues.

10 . 选择适当的情态动词或用所给动词的正确形式填空

must, could, can, might, may, mustn’t, couldn’t, can’t, mightn’t, may not

1. It ________ rain this afternoon. You’d better take a raincoat with you.
2. Betty ________ be in the next room. I can hear her talking there.
3. ---_________he be in the reading room now?
---No, he ________ be in it. I saw him in the office just now.
4. I ________ carry the heavy box. ________ you lend me a hand?
5. You ________ stop your car in the busy street. It is forbidden.
6. I ________ play basketball now, but I _________(not) when I was young.
7. All the students ________ obey the school rules.
8. He ________ (not) go camping with us this weekend. I’m not sure.
9. Her eyes are red. She ________ (be) crying last night.
10. You ________ (see) the famous film Wolf Warrior II as you know so much about the plot.