15. _____by a greater demand for vegetables, farmers have built more green houses. (2007年浙江卷)

　 A. Driven　 B. Being driven　 C. To drive　 D. Having driven

14.　 The children talked so loudly at dinner table that I had to struggle _____. (2007年浙江卷)

　 A. to be heard　 B. to have heard　 C. hearing　 D. being heard　

13.　 As the light turned green, I stood for a moment, not ____ , and asked myself what I was going to do. (2007年湖南卷)

A. moved　 B. moving　 C. to move　 D. being moved

12.　 The children went home from the grammar school, their lessons ______ for the day. (2007年重庆卷)

A. finishing　 B. finished　 C. had finished　 D. were finished

11.　 The glass doors have taken the place of the wooden ones at the entrance, _____ in the natural light through. (2007年天津卷)

　 A. to let　　 B. letting　 C. let　　 D. having let

10. The Town Hall _____in the 1800s was the most distinguished building at that time. (2007年北京卷)

　 A. to be completed　 B. having been completed　 C. completed　 D. being completed

9. There is nothing more I can try _____ you to stay, so I wish you good luck. (2007年北京卷)

　 A. being persuaded　 B. persuading　 C. to be persuaded　 D. to persuade

8. After a knock at the door, the child heard his mother’s voice ______ him. (2007年北京卷)

　 A. calling　 B. called　 C. being called　 D. to call

7．　 He is a student at Oxford University, ____ for a degree in computer science. (2007年北京卷)

　A. studied　 B. studying　 C. to have studied　 D. to be studying

6．　 –Excuse me, sir, where is Room 301? (2007年北京卷)

　 --Just a minute. I’ll have Bob _____ you to your room.

　 A. show　 B. shows　 C. to show　 D. showing