22. It was in the factory _________ his friend worked　 _______ he picked up a lot of experience.

A. where, where　 　　B. that, where　　　　 C. that, that　　 D. where, that

21. ----______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

20. I think it’s the driver rather than the passengers who______ for the accident.

A. is to blame　　　 B. are to blame　　　 C. are to be blamed D. should blame.

19. --- 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

18. 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

17. -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

16. - 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　

15. ---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

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

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

13. It is exactly _____we behave _____has changed the world.

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