参考答案：
1. C 2. B 3. A 4. A 5. D
6. A 7. B 8. D 9. A 10. C
11. C 12. A 13. D 14. C 15. B
16-20：BBCDC
21. 21. C 22. C 23. B 24. C 25. D 26. A 27. B 28. B 29. C 30. D 31. A 32. B 33. A 34. C 35. D 36. B 37. A 38. C 39. B 40. A 41. B 42. D 43. A 44. D 45. B 46. B 47. B 48. A 49. D 50. A 51. B 52. B 53. A 54. D 55. D 56. B 57. D 58. C 59. D 60. A
61. A 62.A 63.A 64.D 65.C 66.B 67.A 68.D 69.C 70.D 71.C 72.B 73.B74.C 75.A 76.D 77.C 178.C 79.B 80.D
81-85:略
86. If you can provide satisfactory after sale service, your products are sure to have a wide market.
87. This novel is the most popular one in the recent years and it is worth reading once more.
88. This sweater doesn’t fit me. Do you have any other styles?
89. If you want to learn English well, it’s necessary for you to practice as much as possible.
90. Mary has got a cold. I regret not having reminded her to put on more clothes yesterday.
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