【正文】 C. would be。 would pay11. John, look at the time. ______ you play the piano at such a late hour? A. Must B. Can C. May D. Need12. I love _____, but I hate ____ in a crowded swimming pool like this.A. to swim。 swimmingC. to swim。 to swim13. You _________ her in her office last Friday，she39。t have seen B. can’t have seen C. might have seen D. must have seen14. Professor White has written some stories, but he is _______ known for his plays.A. the best B. more C. better D. the most15. —Has Sam finished his homework today?—I have no idea. He _______ it this morning. A. did B. has done C. was doing D. had done16. I earn 10 dollars ________ hour as _______ supermarket cashier on Saturdays. A. a。 a C. an。 the17. — Have you known Dr. Jackson for a long time?— Yes, since she ________the Chinese Society. A. has joined B. joins C. had joined D. joined18. —Do you know if Terry will go camping this weekend?—Terry? Never! She ________ tents and fresh air!A. has hated B. hated C. will hate D. hates19. Finally the thief handed everything ________ he had stolen to police.A. after B. what C. whatever D. that20. John said he’d been working in the office for an hour, ___ was true.A. he B. this C. which D. who21. Start out right away, ________ you’ll miss the first train. A. and B. or C. but D. while22. When I _______ home at nine o’clock, I found that he ________ his mother with cleaning. A. am getting … is helping B. got … was helping C. was getting … helped D. had got … had helped23. We will be shown around the city: schools, museums, and some other places, _________ other visitors seldom go. A. what B. which C. where D. when24. They are ________ valuable employees that our pany can’t afford to lose them. A. such B. so C. very D. too25. Mr. Smith owns __________ collection of coins than anyone else I have ever met. A. larger B. a larger C. the larger D. a large26. No one helped me. I did it all _______ myself. A. by B. for C. from D. to27. In fact the Swede did not understand the three questions ________ were asked in French. A. where B. who C. in which D. which28. One learns a language by making mistakes and _________ them. A. correct B. correcting C. corrects D. to correct29. Michael ________ be a policeman, for he is much too short. A. needn’t B.