六.选择填空

1. Great changes ______ in China in the past 20 years.

A. took place   B. have taken place   C. were taken place   D. have been taken place

I. 选择填空（Multiple-choice）（共15小题；每小题1分，计15分）

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。(Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the answer that best completes the sentence.)

31. Alice is fond of playing ________ piano while Harry is interested in listening to ________ music.

A. /; the        B. /; a     C. the; /       D. the; a

选择适当的词或短语并用其正确形式填空（5分）

1. Lacking necessary money, the small companies ________ one by one during the economic crisis two years ago.

2. He is delighted ________ his driving test and now can drive a car on his own.

3. The magazine is meant ________ white-collar working women in their twenties and thirties.

4. The incident(事件) ________ a chain(系列) of events which led to the outbreak of World War II.

5. It is easy to make a promise, but difficult to ______ it ______.

6. We watched the street lights ________ one after another at dawn.

7. Various factors ________ the downfall of the government.

8. Women only ________ 30 percent of the workforce in that factory.

9. We should avoid ________ this kind of trick again.

10. At the present speed, the world’s oil supply will ________ soon.