您正在看的英语语法是:情态动词专练及解析。

　　1. We hope that as many people as possible _____join us for the picnic tomorrow.

　　A. need B. must C. should D. can

　　2. Some aspects of a pilot’s job _____ be boring, and pilots often _____ work at inconvenient hours.

　　A. can; have to B. may; can

　　C. have to; may D. ought to; must

　　3. A left luggage office is a place where bags _____ be left for a short time, especially at a railway station.

　　A. should B. can C. must D. will

　　4. The fire spread through the hotel very quickly but

　　everyone _____ get out.

　　A. had to B. would

　　C. could D. was able to

　　5. He paid for a seat, when he _____ have entered free.

　　A. could B. would C. must D. need

　　6. We _____ have proved great adventures, but we have done the greatest march ever made in the past ten years.

　　A. needn’t B. may not

　　C. shouldn’t D. mustn’t

　　7. Johnny, you _____ play with the knife, you _____ hurt yourself.

　　A. won’t; can’t B. mustn’t; may

　　C. shouldn’t; must D. can’t; shouldn’t

　　8.— May I smoke here?

　　— If you _____, choose a seat in the smoking section.

　　A. should B. could C. may D. must

　　9. This cake is very sweet. You _____ a lot of sugar in

　　it.

　　A. should put B. could have put

　　C. might put D. must have put

　　10. My sister met him at the Grand Theatre yesterday afternoon, so he _____ your lecture.

　　A. couldn’t have attended

　　B. needn’t have attended

　　C. mustn’t have attended

　　D. shouldn’t have attended

　　11. I was on the highway when this car went past followed by a police car. They _____ at least 150 km an hour.

　　A. should have been doing

　　B. must have been doing

　　C. could have done D. would have done

　　12.— Shall I tell John about it?

　　— No, you _____ . I’ve told him already.

　　A. needn’t B. wouldn’t

　　C. mustn’t D. shouldn’t

　　13. It has been announced that candidates _____ in their seats until all the papers have been collected.

　　A. can B. will C. may D. shall

　　14. — I think I’ll give Bob a ring.

　　— You _____ . You haven’t been in touch with him for ages.

　　A. will B. may C. have to D. should

　　15. You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.

　　A. might B. need C. should D. would

　　16. I told Sally how to get here, but perhaps I _____ for her.

　　A. had to write it out

　　B. must have written it out

　　C. should have written it out

　　D. ought to write out

　　17. I was really anxious about you. You _____ home

　　without a word.

　　A. mustn’t leave B. shouldn’t have left

　　C. couldn’t have left D. needn’t leave

　　18.— Write to me when you get home.

　　— _____ .

　　A. I must B. I should

　　C. I will D. I can

　　19. When he was there, he _____ go to that coffee shop at the corner after work every day.

　　A. would B. should C. had better D. might

　　20. Mother _____ us stor