13. He was busy writing a story, only ______ once in a while to smoke a cigarette. (2008辽宁卷)

A. to stop 　　　　　　　　　　 　B. stopping 　　　　 C. to have stopped 　　　　　　　 D. having stopped

12. I like getting up very early in summer. The morning air is so good______.(2008全国卷1)

A. to be breathed　 　　B. to breathe 　　C. breathing 　　　　D. being breathed

11. The director had her assistant ___ some hot dogs for the meeting. (全国卷II)

A. picked up　 　　B. picks up　 　　　C. pick up 　　　　D. picking up

10. Lucy's new job paid twice as much as she had made ______ in the restaurant. (2008山东)

A. working 　　　　　　 B. work 　　　　　　　　　　　 C. to work 　　　　　　　　　 D. worked

9. We had an anxious couple of weeks _____ for the results of the experiment. (2008四川卷)

　 A. wait　　　　　 B. to be waiting　　　 C. waited　　　 D. waiting

8. _____ their hats into the air, the fans of the winning team let out loud shouts of victory. (2008天津卷)

　 A. To throw　　 　　B. Thrown　　　 　　　C. Throwing　 　　D. Being thrown

7. To learn English well, we should find opportunities to hear English ___________ as much as we can. (2008江苏卷)

　 A. speak　　　　　　　　　 B. speaking　　　　　　　 C. spoken　　　　　　　　 D. to speak

6. --- They are quiet, aren’t they?

　 --- Yes. They are accustomed ____________ at meals. (2008江苏卷)

A. to talk　　　　　　　　　 B. to not talk　　　　　　 C. to talking　　　　　　 D. to not talking

5. 　　　　to reach them on the phone, we sent an email instead(2008重庆)

　 A. Fail　 　　　B. Failed　 　　　　C. To fail 　　　　D. Having failed

4. 　　　　　around the Water Cube, we were then taken to see the Bird’s Nest for the 2008 Olympic Games. (2008陕西卷)

A. Having shown　　 B. To be shown　　 C. Having been shown　　 D. To show