91. Our research has focused on a drug which is so ______ as to be able to change brain chemistry.

A. powerful

B. influential

C. monstrous

D. vigorous

92. People have no trust _____ his words.

A. on

B. to

C. with

D. in

93. People who refuse to _____ with the law will be punished.

A. obey

B. consent

C. conceal

D. comply

94. People who want progress are hospitable _____ new ideas.

A. towards

B. from

C. to

D. at

95. Physics is the present-day equivalent of _____ used to be called natural philosophy, from which most of present-day science arose.

A. that

B. all

C. which

D. what

96. Please be careful when you are drinking coffee in case you _____ the new carpet.

A. crash

B. pollute

C. spot

D. stain

97. Please come and help me with this form because I don’t know how to _____ it.

A. set about

B. set off

C. set aside

D. set up

98. Please come to the point, you are _____ the subject again.

A. straying from

B. getting off

C. dwelling in

D. giving up

99. Rejecting the urging of his physician father to study medicine, Hawking close to _____ on math and theoretical physics.

A. impose

B. center

C. overwork

D. concentrate

100. San Francisco is usually cool in summer, but Los Angeles ______.

A. is rarely

B. is scarcely

C. hardly is

D. rarely is

1.C 2. B3. D4. C5. D6. C7. A8. B9. C10. C11. A12. A13. A14. A15. A16. D17. D18. A19. A20. C

21. C22. D23. A24. C25. C26. A27. B28. D29. C30. B31. B32. B33. C34. B35. A36. A37. A38. D39. C40. A

41. A42. D43. B44. A45. B46. D47. D48. A49. B50. C51. A52. A53. B54. B55. B56. C57. B58. C59. C60. D

61. A62. D63. C64. A65. C66. B67. B68. A69. B70. C71. D72. D73. A74. D75. C76. C77. B78. B79. A80. B

81. A82. C83. B84. C85. A86. D87. C88. D89. B90. B91. A92. D93. D94. C95. D96. D97. A98. A99. D100. D