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t C. think over D. think for 35. If it _____ too much trouble, I39。d love a cup of tea. A. isn39。t B. wasn39。t C. weren39。t D. hadn39。t been 36. If the fire alarm is sounded, all residents are requested to _____ in the courtyard. A. converge B. assemble C. crowd D. accumulate 37. If the United States had built more homes for poor people in 1995, the housing problems now in some parts of the country _____ so serious. A. wouldn39。t be B. wouldn39。t have been C. will not be D. would have not been 38. If Tom wins tomorrow, he _____ thirty races in the past four years. A. will win B. has won C. would have won D. will have won 39. If we believe something is good and true we should _____ to it. A. hold up B. keep on C. hold on D. keep up 40. If you _____ James, ask him to phone me. A. should see B. must see C. might see D. would see 41. If you are required to do some work, it must be done _____. A. sooner or later B. after all others C. at last D. in the long run 42. If you know what the trouble is, why you don39。t help them to _____ the situation? A. simplify B. modify C. verify D. rectify 43. I39。m sorry, but what he thinks is not of the _____ important to me. A. worthy B. valuable C. valueless D. priceless 44. I39。m sure your suggestion will _____ the problem. A. contribute to solving B. be contributed to solve C. contribute to solve D. be contributed to solving 45. I39。m very much obliged to you _____ the information. A. on B. for C. with D. of 46. In American universities, classes are often arranged in more flexible _____ and many jobs on campus are reserves for students. A. scales B. ranks C. grades D. patterns 47. In Beijing, the season of the year is probably _____ fall. A. later B. last C. latter D. late 48. In spite of the wide range of reading material specially written or ______ for language learning purposes, there is yet no prehensive systematic program for the reading skills. A. adapted B. acknowledged C. assembled D. appointed 49. In that country, guests tend to feel they are not highly _____ if the invitation to a dinn