Unit 3 虚拟语气(二) 4. It is important that the hotel receptionist _____ that guests are registered correctly. A. has made sure B. must make sure C. made sure D. make sure 5. It was essential tha...
Unit 3 虚拟语气(一) 1. Jack wishes that he _____ business instead of history when he was in university. A. studied B. had been studying C. study D. had studied 2. The millions of calculation invo...
Unit 2 助动词、情态动词(三) 7. Research findings show we spend about two hours dreaming every night, no matter what we _____ during the day. A. should have done B. would have done C. may have...
Unit 2 助动词、情态动词(二) 4. With all this work on hand, he _____ to the cineman last night. A. mustn't go B. wouldn't go C. oughtn't to go D. shouldn't have gone 5. You _____ all those cal...
Unit 2 助动词、情态动词(一) 1. The room is in a terrible mess; it _____ cleaned. A. can't have been B. shouldn't have been C. mustn't have been D. wouldn't have been 2. You _____ her in her o...
Unit 1 时态、语态(七) 19. This kind of glasses manufactured by experienced craftsmen _____ comfortably. A. is worn B. wears C. wearing D. are worn 20. By the time you get to New York, I _____ fo...
Unit 1 时态、语态(六) 16. It seems oil ____ from this pipe for some time. We'll have to take the machine apart to put it right. A. had leaked B. is leaking C. leaked D. has been leaking 17. Grea...
Unit 1 时态、语态(五) 13. While people may refer to television for up-to-the-minute news, it is unlikely that television _____ the newspaper completely. A. replaced B. have replaced C. replace D...
Unit 1 时态、语态(四) 10. Until then, his family _____ from him for six months. A. didn't hear B. hasn't been hearing C. hasn't heard D. hadn't heard 11. Before the first non-stop flight made in...
Unit 1 时态、语态(三) 7. By the end of the year all but two people ______. A. have left B. will leave C. will be leaving D. will have left 8. By the end of this month, we surely _____ a satisfac...
