高中英语从属连词单选题

Roses need special care ______they can live through winter.

A．because

B．so that

C．even if

D．as

The boy was so tired that he fell asleep _____________ his mother could take off his clothes．

A．before

B．after

C．while

D．where

Mother was busy washing dishes ________________ Father was watching TV．

A．until

B．if

C．since

D．while

We students are so busy with our homework that we have no time for outdoor exercise, ______ we have the desire.

A．wherever

B．whenever

C．even if

D．as if

________ I can see, there is only one possible way to keep away from the danger.

A．As far as

B．as long as

C．Just as

D．Even if

There is no way of knowing why one man makes an important discovery ______ another man, also intelligent, fails.

A．since

B．if

C．as

D．while

Sinking in the cheers of people, David walked off the stage, tears dropping      he could stop them．

A．after

B．when

C．until

D．before

You may do whatever you like in the holiday. ________ me, I think I can have a rest.

A．As for

B．As with

C．As

D．As about

（届北京市东城区普通校高三3月联考英语试卷）
Don’t be afraid of asking for help ___________ it is needed.

A．unless

B．since

C．when

D．although

（2013·大纲卷）I was glad to meet Jenny again,        I didn't want to spend all day with her.

A．but

B．and

C．so

D．or

I have heard a lot of good things about you ________ I came back from abroad.

A．since	B．until
C．before	D．when

________, Mr. Wells is scarcely in sympathy with the working class.

A．Although he is a socialist	B．Even if he is a socialist
C．Being a socialist	D．Since he is a socialist

_____the activities might seem childish, actually they require a lot of strength and determination.

A．Since

B．Although

C．Before

D．If

You cannot take back your words ______ they are out of your mouth.

A．before

B．whether

C．once

D．while

______ is reported in the newspaper is that seventeen climbers have been killed in the snow tsunami.

A．It

B．As

C．What

D．That