20. It was _______ she was injured in the accident_______she didn't come to the party yesterday.

　 　A. as; which　　　　 B. because; that　　　 C. since; why　　　 D. for; how

19. –Why didn’t she spend so much time searching shop after shop only for a skirt?

　–Oh, she was very ________ about her clothes.

A. pleased　　　　 B. particular　　　　　 C. worried　　　　　 D. curious

18. –Well, that was really a good meal. I _________ you were a really good cook.

　 --Thank you.

A. didn’t know　　 B. don’t know　　 C. haven’t know　　　　 D. hadn’t know

17. The girl is not interested in chemistry and biology,　 _______ is very good.

　　 A. but either of them　　　　　　　　　　 B. each of which

　　 C. neither of them　　　　　　　　　　　　 D. neither of which

16. With no one to ________ for help in such a frightening situation, she felt very helpless.

A. turn to　　　　 B. refer to　　　 C. turn over　　　 D. come to

15. _________and you will win the boss’s praise.

A. Have a bit more efforts　　　　　　 B. A bit more efforts

C. Given one more efforts.　　　　　　 D. If I have one more efforts

14. _________ Mathilide had lost the necklace, Pierre's face turned white.

　　A. Hearing　　　 B. Having heard　　　 C. When hearing　　 D. When he heard

13. –We expected you yesterday.

　 --I’m sorry, I_________ you to say that I couldn’t be here until today.

A. must have been　　　　　　　　　 B. would be calling　　　

C. could have been calling　　　　　 D. should have called