24．--- Sorry, Sir. I can’t answer this question.

　　　 --- Well, you are supposed ______ this part of history.

　　　 A. reading　　　 B. to be reading　 C. to have read　　　　　　　 D. having read

23.　 Wise teachers know it’s impossible for all the students to learn all the subjects well because _____ of them are not fit for them.

A. every one　　　　　 B. all　　　　　　　　　　 C. none　　　　　　　　 D. not all

22.　 The most important thing about cotton in _____ history is _____ part that it played in the Industrial Revolution.

A. the; 不填　　　　　 B. the; a　　　　　　　　 C. the; the　　　　　　 D. 不填; the

21. - Excuse me, Professor Smith, I was wondering if I could leave a quarter earlier today.

　　　 - _____

　　　 A. Nothing the matter.　　　　　　　　　　　　 B. Sure, go ahead.

　　　 C. Oh, why not?　　　　　　　　　　　　　　　　 D. Of course, no problem.

71. weighed　 72. to be held　 73. killing　 74. arrived　 75. included　 76. had not tried　 77. had taken　 78. didn’t see　 79. Follow　 80. plays　 81. run　 82. was started　 83. preparing　 84. sung　 85. Have …been approved　 86. required　 87. explaining　 88. is not allowed　 89.(should) be handed　 90. pressing/ to be pressed

58. seeing　 59. talking　 60. to smoke　 61. broken　 62. recovering　 63. Working out　 64. chatting　 65. listening　 66. had caught　 67. dressed　 68. get　 69. was held　 70. had expected

19. to make　 20. would help　 21. was leaving　 22. will be seeing　 23. be looked into　 24. to stay out　 25. show　 26. not believe　 27. being praised　 28. giving　 29. being knocked　 30. to tell　 31. Compared　 32. have heard　 33. living　 34. writing　 35. has been married　 36. taking　 37. examined　 38. produce　 39. having saved　 40. taking　 41. has passed　 42. missing　 43. is being discussed　 44. leaves　 45. have been invited　 46. will be having　 47. is taken　 48. to be sent　 49. doesn’t rain　 50. had been built　 51. done/ to be done　 52. to make　 53. cleaning/ to be cleaned　 54. to telephone　 55. having bought　 56. Riding　 57. expected/ had been expected

13. starting　 14. to start　 15. seeing　 16. have dropped　 17. be informed　 18. affected