19.In the dark street, there wasn’t a single person _____ she could turn for help.

　 A. to whom　　　 B who　　 　　C. from whom　　 D. that　　

18. I’ll tell you ___ he told me last week.

　 A. all which　　　　 B. all what　　　　 C. that all　　　　 D. all that　　　　　　　　　　　　　　　　　　　

17.Is oxygen the only gas ____ helps fire burn?　　　

A. that　　 B./　　 C. which　　 D. it

16.---How do you like the book?

　 ---It’s quite different from ____ I read last month.

　 A. that　　　　 B. which　　　　 C. the one what　　 D. the one

15.I, ___ your good friend, will try my best to help you.

　 A. who is　　　 B. who am　　　 C. that is　　　　 D. what is

14.Did you see the man ____ ?

　 A.I nodded just now　 B. whom I nodded just now　 C. whom I nodded to him　 D. whom I nodded to just now

13.All the apples ___ fell down were eaten by the pigs.

　 A. those　　　　　 B. that　　　　　　　 C. which　　　　 D. what

12.They have decided to stay at home, ____ , I think , ___ a wise choice.

　 A. which , are　　　 B. which , is　　　　　 C. that , are　　 D. that , is

11. This is the store 　　　　we visited the famous shop assistants.

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

10.It was a meeting ______ importance I didn’t realize at that time.

　 A. which　　　　 B. of which　　　　　 C. that　　　　 D. whose