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1. Helen ______ her keys in the office so she had to wait until her husband ______ home.

A. has left; comes      B. left; had come       C. had left; came       D. had left; would come

解析：答案選 C。leave 應發(fā)生在 had to wait 這個過去動作之前，“過去的過去”用過去完成時; 后一空用一般過去時表示過去將來。

2. —Nancy is not coming tonight.

—But she ______!

A. promises               B. promised              C. will promise         D. had promised

解析：答案選 B。“但她曾經(jīng)答應要來的”，過去的許諾，故用一般過去時。

3. —You haven’t said a word about my new coat, Brenda. Do you like it?

—I’m sorry I ______ anything about it sooner. I certainly think it’s pretty on you.

A. wasn’t saying        B. don’t say              C. won’t say             D. didn’t say

解析：答案選 D。用一般過去時，指“我剛才沒急于說”。

4. All morning as she waited for the medical report from the doctor, her nervousness ______.

A. has grown             B. is growing            C. grew                    D. had grown

解析：答案選 C。緊張伴隨等的過程而產(chǎn)生，應同時發(fā)生，waited 是一般過去時，grow 也用一般過去時。

5. I thought Jim would say something about his school report, but he ______ it.

A. doesn’t mention    B. hadn’t mentioned   C. didn’t mention      D. hasn’t mentioned

解析：答案選 C。只描述過去所發(fā)生的情況，但沒有強調(diào)對現(xiàn)在的影響，用一般過去時。

6. I ______ while reading the English textbook. Luckily, my roommate woke me up in time!

A. had fallen asleep    B. have fallen asleep  C. fell asleep             D. fall asleep

解析：答案選 C。描寫過去發(fā)生的情況用一般過去時。

7. Sales of CDs have greatly increased since the early 1990s, when people ______ to enjoy the advantages of this new technology.

A. begin                   B. began                   C. have begun           D. had begun

解析：答案選 B。when引導的是一個非限制性定語從句，when指20世紀90年代初，當然用一般過去時。

8. —I hear Jane has gone to the Holy Island for her holiday.

—Oh, how nice! Do you know when she ______?

A. was leaving           B. had left                 C. has left                 D. left

解析：答案選 D。因為Jane已經(jīng)度假去了，“離開”此地就當然是在此之前的過去某個時間了，所以用一般過去時，選D。另外，when通常都不與完成時連用，排除B和C，A也與語境不符。

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