1. Mary ____ in the garden when it began to rain.
A. was walking B. walked C. walking D. had walked
【答案】A it began to rain是一个过去的时间点，因此主句因该用过去进行时。选A。句意为“当开始下雨时， 玛丽正在花园散步。”
2. No one can possibly recall any detail about the meeting. It is at least five years since it ___.
A. had taken place B. was taken place C. took place D. was taking place
【答案】：C。It is …time since +从句(谓语动词用过去时)，故选C。It is many years since World War Two was over.自从二次大战结束以来已经很多年了。
3. Dr. Robert went to New York, bought some books and ___.
A. visiting his daughter B. to visit his daughter
C. visit his daughter D. visited his daughter
【答案】D 此句中有三个动词作并列谓语，由and连接，所以前后时态应一致。
4. Let’s go to the cinema tonight. I ____ for you at the gate.
A. wait B. shall wait C. am waiting D. shall have waited
【答案】B 本句中tonight是一个将来时间，时态应用将来时。第一人称将来时可用 shall表示。
5. While the secretary____ his desk, he found the long lost report.
A. had been cleaning B. is cleaning C. has been cleaning D. was cleaning
【答案】D 首先是过去时，排除BC。然后并不强调完成，排除A。秘书在打扫桌子的时候，他发现了丢失已久的报告。
6. Smith is to study medicine as soon as he_____ military service.
A. will finish B. has finished C. finish D. would finish
【答案】B句意：一服完兵役，史密斯就要开始学习医学。此处as soon as 引导时间状语从句，从句中用一般现在时或者现在完成时表示将来，所以排除A和D;而如果用一般现在时，应该是finishes, 因此C项也不正确;所以选has finished,为现在完成时。
7. No one can be sure if the car on display fits him or her until he or she ___ them.
A. tries B. will try C. are trying D. have tried
【答案】：A。本题是测试考生的时态。在时间和条件状语从句中要用一般时表示将来的动作。因此A 是正确答案。又如：“They will go home for winter vocation as soon as they finish their exams. 他们一考完试就回家过寒假。”
8. Please be sure to telephone me the next time you____.
A. will come B. would come C. shall come D. come
【答案】D the next time you come 是时间状语从句，“下次你来的时候”，the next time 后一般用现在时表将来时。
9 You should visit this part of the country when ___
A. spring will com B. spring comes C. It has been spring D. It will be spring
【答案】B。主将从现，你应该春天来拜访这个地区。
10. I think I’ll wait until the mail ______ .
A. should come B. is coming C. comes D. will come
【答案】C。主将从现。我认为我会一直等到邮件寄过来。
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