20. ------What are you considering now?

　 -------______ my job.　

A. changing　　　　 B. to change　　　　 C. change　　　　　　 D. changed

19. Many people who saw the film were afraid to swim in the sea when they remembered the scenes ________ people were eaten by the shark．

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

18. --- My room gets very cold at night.

--- ___________.(07江苏卷)

　A. So is mine　　　　　　 B. So mine is　　　　　 C. So does mine　　　　　　　　　 D. So mine does

17. It's always difficult being in a foreign country, _______ if you don't speak the language. (NMET 2000, 11)

A.equally　　　 B.naturally　　　　　 C.basically　　　　 D.especially

16.Look out! Don’t get too close to the house______roof is under repair.

A.whose　　　　 B.which　　　　　　　 C.of which　　　 D.what (06安徽卷)

15. We thought of selling this old furniture, but we've decided to _______ it.It might be valuable. (NMET 2002, 31)

A.hold on to　　 B.keep up with　　　　　 C.turn to　　　　 D.look after

14.Do you still remember the chicken farm ______we visited three months ago?

A. what　　　　　 B. when　　　　　　 C. that　　　　 　D. to which　 (06北京春)

13. You should not go rafting __________ you know how to swim, and you should always wear a life jacket.

A. though　　　　　　　 B. unless　　　　　　　　　　 C. until　　　　　　　　　　　 D. if