[10-20 18:10:12] 来源：http://www.67xuexi.com 高二英语 阅读：85802次
51. I am sure ____ you said is true.A. what B. that C. which D. who
52. The trouble is ____ we can not find such an expert.
A. why B. that C. where D. /
53. It has not been decided ____ they will leave.
A. why B. when C. which D. what
54. We shall go ____ you are ready. A. while B. as soon as C. as D. since
55. He will tell you about it ____ you get there.A. while B. as C. when D. /
56. Don't try to get off the bus ____ it has stopped.
A. while B. as C. since D. before
57. I'll come and see you _____ I go to the countryside.
A. while B. when . C. as soon as D. before
58. ___ he came to study in the university, he has made much progress in the study of English.
A. While B. When C. Since D. After
59. Things have changed a lot ____ I wrote to you last time.
A. when B. since C. as D. before
60. I can't use your pen, ___ there is no ink in it.A. for B. when C. if D. whether
61. I'd like to go swimming ____ the water is not too cold.
A. for B. unless C. if D. whether
62. Difficulties are nothing ___ we are not afraid of them.
A. for B. as C. if D. whether
63. The doctor will not perform the operation ___ it is absolutely necessary.
A. when B. if C. for D. unless
64. Go back ___ you came from. A. until B. where C. which D. when
65. He lay ___ the grass was the thickest. A. where B. when C. that D. after
66. You will find friendly people ___ you go in China.
A. where B. and C. wherever D. so
67. ___ it was already dark, they went on working in the fields.
A. If B. Whether C. But D. Though
68. ___ he has finished writing the novel is unknown.
A. If B. Whether C. When D. While
69. We'll go and see the patient ___we are busy.