|作者：陈根花 文章来源：本站原创 点击数 更新时间：2008-05-16 文章录入：admin 责任编辑：admin|
3. He kept looking at her, wondering whether he ______her somewhere.
A. saw B. has seen C. sees D. had seen
When I had opened the windows I sat down and had a cup of tea. 我打开窗户后，就坐下来喝了一杯茶。
When I had written my letters I did some gardening. 我写完信之后，就在花园里干了点活儿。
When he had shut the window we opened the door of the cage. 他关了窗户之后，我们把笼门打开了。
4. She ______her hairstyle in her hometown before she came to
A. would change B. has changed C. changed D. was changing
5. He ______more than 5000 English words when he entered the university at the age of 15.
A. has learned B. would have learned C. learned D. had learned
6. Father ______for
A. has left B. left C. was leaving D. had left
7. The policeman’s attention was suddenly caught by a small box which ______ placed under the Minister’s car.
A. has been B. was being C. had been D. would be
8. Susan decided not to work on the program at home because she didn’t want her parents to know what she ______.
A. has done B. had done C. was doing D. is doing
分析：C。因decided和didn’t want都是过去式，排除选项A和D; 因“做”发生在“决定”之后，而不是之前，不能用过去完成时，排除选项B。
9. —Hurry up! Alice and Sue are waiting for you at the school gate.
—Oh ! I thought they ______ without me.
A. went B. are going C. have gone D. had gone
10. They ______ on the program for almost one week before I joined them, and now we ______ it as no good results have come out so far.
A. had been working; are still working B. had worked; were still working
C. have been working; have worked D. have worked; are still working
分析：A。在I joined them之前，就是“过去的过去”，要用过去完成时或过去完成进行时，排除选项C和D; 由now和“到目前还没有结果”可知，现在仍在进行这项工作，用现在进行时，排除选项B。
11. The coffee is wonderful! It doesn’t taste like anything I ______ before.
A. was having B. have C. have ever had D. had ever had