18. AIDS is said ______ the biggest health challenge to both men and women in that area over the past few years. (2006湖北卷)

　 A. that it is　　　　 B. to be　　　 C. that it has been　 D. to have been

17. -- I was wondering if we could go skiing on the weekend. (2006湖北卷)

　　 -- _______good.

　 A. Sound 　　　　　　　 B. Sounded 　　　　　 C. Sounding 　　　　　　　　 D. Sounds

16.　　　　 　this cake, you'll need 2 eggs, 175 g sugar and 175 g flour.

　　 A. Having made　　　　 B. Make　　　　　 C. To make　　　 　　　D. Making

15. No matter how frequently 　　　　　, the works of Beethoven still attract people all over the world. (2006广东卷)

　　 A. performed　　　　 B. performing　　　　 C. to be performed　　 D. being performed

14. I can’t stand ______ with Jane in the same office. She just refuses _______ talking while she works. (2006北京卷)

　 A. working ; stopping　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B. to work ; stopping

　 C. working ; to stop　　　　　　　　　　　　　　　　　　　 D. to work ; to stop

13. There have been several new events ________ to the program for the 2008 Beijing Olympic Games. (2006北京卷)

　 A. add　　　　　　　　　　 B. to add　　　　　　　　　　　 C. adding　　　　　　　　　 D. added

12. She went to the bookstore and bought _________.(2006北京卷)

　 A. dozen books　　　　 B. dozens books　　　　　　 C. dozen of books　　　 D. dozens of books

11. It took a long time for the connection between body temperature and illness______ . (2006江西卷)

　　 A．to make　　 B．to be made　　 C．making　　 D．being made

10. After he became conscious，he remembered________ and________ on the head with s rod．(2006江西卷)

　　 A．to attack; hit　　　 B．to be attacked；to be hit

　　 C. attacking；be hit　　 D．having been attacked；hit

9. Isn't it time you got down to________　　the papers? (2006重庆卷) 　A. mark　　　　　 B. be marked　　 C. being marked　　 D. marking