_______ Sorry, I'm afraid the gas __________.

A. has run out B. has used out C. has been run out D. has to use out

17. You shouldn't accept this gift, ________ sent it to you.

A. no matter whom B. regardless of whom

C. regardless of who D. who

18. Don't _________ to ask me if you have any question.

A. hesitate B. mind C. afraid D. remember

19. -------- So can I ask you a few fairly straightforward questions about yourself?

______ No problem. I like ________ when people are open and direct.

A. that B. this C. it D. them

20. The beauty of the picture __________ its balance of colors.

A. consists of B. consist in C. consists with D. consists in

　　答案 1-5 BCDBB 6-10 BCBCD

　　 11-15 BCCCD 16-20 ACACD