1 . Lawrence Craven is the author of several published reports, one of _____ introduced the idea _____ aspirin could reduce the risk of heart attacks.

A．them; when	B．which; that
C．what; that	D．which; when

2 . The old man turned his business over to his younger son, ________made his elder son discouraged.

A．who	B．what
C．that	D．which

3 . Thailand has decided to begin building its first standard-gauge railways in cooperation with China, ______may cost $12.2 billion.

A．when

B．that

C．it

D．which

4 . Zhuzhou offers visitors outstanding natural beauty coupled with excellent customer service, _________ makes for an unforgettable experience.

A．what

B．which

C．that

D．whom

5 . Tom has gone to Shanghai,_____ is in the east of China.

A．where

B．who

C．which

D．that

6 . Don’t take up other people’s personal space, ______ will bring much inconvenience to them.

A．where

B．which

C．what

D．that

7 . Crusoe’s dog became ill and died, ______made him very lonely.

A．this

B．that

C．which

D．as

8 . Some teenagers like eating in fast food restaurant, ______ you can see everywhere in our city.

A．where

B．which

C．what

D．when

9 . The first question was quite difficult but the rest _______ easy, _______ surprised us all.

A．was; which	B．was; that
C．were; which	D．were; which