1 . Directions: Fill in the blanks with the proper modals in the box.

may   might   must   needn’t   mustn’t   can’t   shall   should   wouldn’t   could

1. Susan ________ have won the match yesterday, but she had her foot injured.
2. I ________ have gone there last Sunday, but I completely forgot about the get-together.
3. Lucy ________ buy a train ticket, because her father will drive her to Shanghai.
4. No matter what I said, Johnson ________ change his mind.
5. Jack knows the city quite well. He ________ have visited it before.
6. If the soil is not so good, you ________ only get half that.
7. Both of you ________ talk in class, or the teacher will drive you out.
8. You can phone him now and tell him that he ________ have his money at the end of this year.
9. If you want to win the game, you ________ train hard every day.
10. His car is still in front of the building, so he ________ have gone home.

2 . 选词填空。
1. My mother is ill, so I ________(have to/ must)stay home to look after her.
2. He ________(can’t/ mustn’t)be Tom. Tom has gone to London, you know.
3. It’s dark outside. Besides, it’s raining heavily. So, you ________(had better/ might)go home with me.
4. In today’s information age, the loss of data ________(can/must)cause serious problems for a company.
5. It’s strange that he ________(should/ must)have taken the books without the owner’s permission.
6. Samuel, the tallest boy in our class, ________(can/should)easily reach the books on the top shelf.
7. My room is in a mess, but I ________(needn’t/ shouldn’t)clean it before I go out tonight. I can do it in the morning.

3 . 选词填空
1. You________(must/shall) get my answer this Friday.
2. It is raining heavily outside. If you ________(must/should) go out, you’d better wear a raincoat.
3. To encourage children to read, the books for children ________(can/should) be within easy reach at home.
4. ________(can/may) you have many more days as happy as this one.
5. —Must we leave here right now?—No, you ________(mustn’t/needn’t).
6. She   ________(mustn’t/can’t) be at home. She was in her office just now.
7. She ________(might/should) still wait for your letter you promised to send last week.
8. A cracked bell ________(can/may) never sound well.
9. ________(could/might) she have forgotten such an important thing for the whole family?
10. Even if he is available, he ________(won’t/shan’t) go shopping in town on Sunday.
11. Look at the mess! You   ________(can/should) be more careful and clean it soon.
12. May I speak to the patient now?” “No, you_______ (mustn’t/may not). He’s too weak now.”
13. He is from a peasant family. He _______(must/will) know how to do that kind of farm work.
14. The student was criticized because he________(can/should) hand in his paper this morning.
15. You _______(couldn’t/needn’t) told her all the truth about the accident as she is unconcerned.
16. Sometimes she _______(would/should) take a walk in the neighboring woods.
17. Even the top students in our class can’t work out this problem, so it_______(must/can) be very difficult.
18. He_______(may not/can’t) be in the classroom. I saw him go home a minute ago.
19. You_______(should/would) go and see a doctor at once because you’ve got a fever.
20. John_______(may/would) come to see us tonight, but he isn’t very sure yet.

4 . 选词填空

can     could     may     might     shall     should     will     would   must     need

1. He ________ have the book when I finish reading.
2. John, you__________play with the knife, you may hurt yourself.
3. It________ be my husband, for he has gone to Tokyo for a meeting.
4. There is plenty of juice in the fridge, so you ________buy any.
5. it was an easy test and she ________ have passed.
6. The strange creature newly found in the river ________ be a big fish.
7. he ______   have won the game, but he lost at the last moment.
8. When the siblings were sent to the countryside, they ________ read together at night.
9. If time permitted, I   ________ come and attend the attracting party.
10. She ________still be thinking about the questions you raised.

5 . 选词填空

should     may   would   dare   need     shall       must       can       could       will

1. computer can’t think for itself; it __________ be told what to do.
2. Peter__________come with us tonight, but he isn’t very sure yet.
3. If the crime __________ come, I will arrest him immediately.
4. You   __________ fail in the final exam if you don’t prepare well.
5. I__________   help my relative who is in trouble.
6. It __________ be about ten when he left home.
7. You __________ have completed the task better, but you didn’t try your best.
8. I didn’t __________ clean the room for my mom had already finished it.
9. These English poems are very short and students________easily remember them.
10. My car ________ start. Could you give me a hand?

6 . 选词填空would/should
1. I_________ often go to see my uncle on Sundays when I was in the countryside.
2. I think children __________ be taught to tell the truth.