_____ we were singing, the teacher came in.A．BeforeB．afterC．AsD．Until

题型：不详难度：来源：

_____ we were singing, the teacher came in.

A．Before

B．after

C．As

D．Until

答案

解析

略

举一反三

The hard he works, _____he will make.

A．the greater	B．the greater progress
C．and the more	D．more

题型：不详难度：| 查看答案

Cyrus is so successful that she made Forbes’ Celebrity 100 list last year ___she was number 35.

A．where

B．when

C．which

D．That

题型：不详难度：| 查看答案

Li Lei has not yet answered my question______I can go with him to________he calls the Natural Underground Gallery next week.

A．that; which

B．whether; what

C．whether; that

D．that; where

题型：不详难度：| 查看答案

The problem of the present world is that those who are imaginative have little experience
those who are experienced have weak imagination.

A．unless

B．although

C．because

D．while

题型：不详难度：| 查看答案

We’ll have a further discussion_________ we make a decision.

A．then

B．when

C．and

D．before

题型：不详难度：| 查看答案