1. The three men tried many times to sneak across the border into the neighboring country, _____ by the police each time. (1999)

A. had been captured B. being always captured

C. only to be captured D. unfortunately captured

C，“这三人多次企图偷偷越过边界进入邻国，不料每次都被警察抓住。”only to表示出乎意料，通常是不愉快的结果。

2. This missile is designed so that once ______ nothing can be done to retrieve it, (1995)

A. fired B. being fired C. they fire D. having fired

A，once连词，一旦，被动，所以A。This missile is designed so that once it is fired …

3. ______ , he can now only watch it on TV at home. (1998)

A. Obtaining not a ticket for the match B. Not obtaining a ticket for the match

C. Not having obtained a ticket for the match D. Not obtained a ticket for the match

C，分词短语的动作在主句动作之前发生，用分词的完成形式。

4. Arriving at the bus stop, ______ waiting there. (1994)

A. a lot of people were B. he found a lot of people

C. a lot of people D. people were found

B，空处的逻辑主语与arrive保持一致。

5. _____ regular training in nursing, she could hardly cope with the work at first. (1994)

A. Not received B. Since receiving C. Having received D. Not having received

D，receive的主语是she，因此应是主动，A不对;receive的动作在主句谓语动词之前发生，所以要用分词的完成形式，否定应是not having done.

6. __B__ at in this way, the present economic situation doesn’t seem so gloomy. (2000)

A. Looking B. Looked C. Having looked D. To look

7. There __ nothing more for discussion, the meeting came to an end half an hour earlier. (2000)

A. to be B. to have been C. being D. be

C.前面分句构成独立主格结构。

8. _____ no cause for alarm, the old man went back to his room. (1996)

A. There was B. Since C. Being D. There being

D.C中的现在分词短语的逻辑主语不是主句的主语。

9. The country’s chief exports are coal, cars and cotton goods, cars _____ the most important of these. (1994)

A. have been B. are C. being D. are being

C.ABD都会使后半部分构成完整的句子，但句中用的是逗号，不能是完整句子。

10. Agriculture is the country’s chief source of wealth, wheat _____ by far the biggest cereal crop. (2003)

A. is B. been C. be D. being

D，“农业是这个国家的主要财源，目前小麦是谷物中产量最大的。”