1 . —Was it there _______ you were away to answer the phone?   —There is no doubt about it.

A．that

B．which

C．while

D．where

2 . Mary quickly closed the door of her room _______ her father could reach it to keep him out.

A．before	B．when
C．as	D．while

3 . —Your flight was quite late last night.
—Yes, it was midnight __________ our plane finally got to Jinan.

A．that

B．when

C．since

D．until

4 . We knew we were getting close to the park ________ we started seeing the tiger right next to the road.

A．when

B．before

C．while

D．until

5 . There were some chairs left over________everyone had sat down.

A．when	B．until
C．that	D．where