1 . When solving the problem a second time, you’d better be more careful ________ you made a mistake.

A．in case

B．where

C．in which

D．that

2 . His parents were teachers in that school, _______ lost their lives in order to save   their students in the earthquake.

A．none of them

B．both of them

C．none of whom

D．both of whom

3 . I firmly believe_______ he said at the meeting was right.

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

4 . In the cave they found the very book, the cover of _______was torn.

A．which

B．what

C．that

D．whose

5 . His grandfather was among the first to settle in _____ is now a famous holiday center.

A．what

B．which

C．where

D．that

6 . The sight, hearing and other senses of wild animals are much better than_______of a human.

A．that

B．those

C．which

D．what

7 . Last month I came to Britain. My English has improved a lot _______ I use it all the time.

A．unless

B．while

C．when

D．as

8 . It was not ______ he took off his dark glasses ______ I realized he was Liu Xiang.

A．when; that

B．until; when

C．when; then

D．until; that

9 . --- Time passes quickly, doesn’t it?
--- Yes. It will be only two months_______we take the 2010 College Entrance Examination.

A．since

B．after

C．before

D．When

10 . How can you expect him to make any progress _____ you never give him a chance to have a try?

A．when	B．unless
C．even though	D．until