17. ----______was it ______ they discovered the entrance to the underground palace?

----Totally by chance.

A. How, that　　　　　 B. What, that　　　　　　　　 C. When, when　　　　　　 D. Where, that

16.　 --- The patient looks much better. 　　　is it that has made him 　　　　he is today?

--- Perhaps the special medicine and his family’s patient care.

A．What; that　　　　　 B．That; that　　　　　　　　　 C．What; what　　　　　　　 D．What; which

15. It was not what he said but the way he said it ______ made a great difference to me at last..

A. what　　　　　　　　 　 B. that　　　　　　　 　　　 C. before　　　　　　　　　　　　 D. when

14.　 -Why is it ________ so many people enjoy eating on the run?

-Of course, the most obvious answer is that fast food is fast.

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

13.　 - Why did the dinner party start so late last night?

- It was _____ that caused him to serve dinner an hour later than usual.　

A. we were late　 　B. we being late　 　　　 C. our being late 　 D. because we were late　

12.　 --I can’t find Mr. Brown. Where did you meet him this morning?

---It was in the hotel _______he stayed.　

A that　　　　　 B which　　　　　　 C where　　　　　　 D when

11. Was it in 1969 _____ the American astronaut succeeded_____ landing on the moon?

A．when；on　　　 B．that；on　　　 C．when；in　　　　 D．that：in

10. It is exactly　　　 we behave　　　　　 has changed the world.

A．which; that　　　　　 B．how; that　　　　　　 C．how; what　　　　　　　　　　　　　　　　　 D．what; that

9.　 -I can’t find Xiao Ping, where did you see him this morning?

-It was in the library______ he studied．

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

8.　 -________ matters to do the job well -what you are or where you come from?

-Neither. It depends on whether you put your heart into it.

A．Which is it that　　　　　　　　　　　　　　　　　　 B．What it is that

C．Which it is that　　　　　　　　　　　　　　　　　　 D．What is it which