15.-How about seeing the new movie at the theatre tonight?

-　________　　,but I’ve got to go over my notes for tomorrow's exam. 　A. All right 　B. Sounds great 　C.I can，t　 　D. No, I am terribly sorry

14. AIDS is said ______ the biggest health challenge to both men and women in that area over the past few years.

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

13. It remains ________ whether Jim’ll be fit enough to play in the finals.

　 A. seen　　　　　　　　　　　 B. to be seen　　　　　　　 C. seeing　　　　　　　　　　 D. to see

12.The parents suggested ___ in the hotel room but their kids were anxious to camp out during the trip.

A. sleep 　　　　　　　 B. to sleep 　　　　　　　　　 C. sleeping 　　　　　　　　　 D. having slept

11. ----Go for a picnic this weekend, OK?

---- ______. I love getting close to nature.

A. I couldn’t agree more　　 B.I afraid not.

C. I believe not　　　　　 D. I don’t think so.