1 . It was not until midnight____ they reached the camp site.

A．that

B．when

C．while

D．as

2 . Not until he left his home ______ to know how important the family was for him.

A．had he begun

B．did he begin

C．he began

D．he had begun

3 . "___ Libya's oil production returns to normal, I guess, it will be fifteen months," said a UN expert．

A．After

B．That

C．Before

D．Since

4 . It is so wet there _____ the trees are extremely tall, some measuring over 90 meters.

A．what

B．which

C．that

D．why

5 . Was it because of the heavy snowstorm in Europe ________ the flight had to be put off？

A．which

B．so

C．why

D．that

6 . He would rather_______his life than_______damage done to state property.

A．lose,to see

B．to lose,see

C．to lose,to see

D．lose,see

7 . ________ I need is more time.

A．That

B．What

C．/

D．Which

8 . The weather turned out to be very good, _______was more than we could expect.

A．what	B．which
C．that	D．it

9 . —It’s a long time since I saw my sister.
—_______________ her this weekend?

A．Why not visit	B．Why not to visit
C．Why not visiting	D．Why don’t visit