17. The new outline will throw light _______ students’ understanding of history.

　 　 A. upon　　　　 　　　　　 B. at　　　　　　 　　　 C. of　　　　　　 　　　 D. over

16.　 --- Well, Linda, I’m sorry but I have to leave.

--- _______. I hope to hear from you soon.

A. So am I　　　　　 　 B. Enjoy yourself　　　 C. Don’t be so sad　　 　　　 D. Keep in touch

15. Researchers _______ to develop vaccines and this will probably take several months to complete.

A. are working　 　　　　 B. worked　　　 　　　　　 C. will work　　　　 　 D. has worked

14. Water can absorb and give off a lot of heat, thus ________ a stable enviroment.

　　 A. creating　　　　　 B. to creat　　　　　 　 C. created　　　　　 　 D. being careated

13. He took ________ advantage of cultural resouces and succeeded in ________ 1990s.

A. an ; /　　　　　　 B. the ; the　　　　　 　　　 C. an ; the　　　　　 D. / ; the

12. I'm _______ in studying English words. Don't bother me

A. absorbing　　　 　　　 B. absorbed　　　 　　　　 C. to absorb　　　 　　　　　　　 D. being absorbed

11. --- Don’t you know our boss accepted the suggestion _______ by some workers?

--- Really? That’s great.

A. put off　　 　　　　　　　　　　 B. put together　　 　　　　　　　 C. put forward　　 　　 D. put aside

10. Though I have stayed _______ for a few years, I have always been concerned about my motherland.

　 　　 A. board　　 　　　　　　　　　　 B. broad　　　 　　　　　　 C. aboard　　　 　　　　　 D. abroad

9. An earthquake shook the city last night and hundreds of houses _______.

　 　　 A. got to damage　　　 B. got damaged　 　　　　 C. got damage　　　　 D. got damaging

8. Now there is just one point _______ I wish you to make quite clear.

　 　　 A. where　　 　　　　　　 B. which　　 　　　　　　　 C. whether　　 　　　　　 D. when