It was such a difficult problem_______ few students in our class worked out．A．th

题型：不详难度：来源：

It was such a difficult problem_______ few students in our class worked out．

A．that

B．what

C．as

D．which

答案

解析

略

举一反三

—When did your cousin begin to show his interest in medicine?
—It was a Saturday ___ she noticed her uncle experimenting on a frog in his lab.

A．that

B．what

C．when

D．which

题型：不详难度：| 查看答案

In Jan., 2010, Xin Jiang was struck by so terrible a snow______few people had ever experienced before.

A．what

B．as

C．that

D．which

题型：不详难度：| 查看答案

They multiplied and filled the oceans and seas with oxygen, _____ encouraged the later development of early shellfish and all sorts of fish.

A．that

B．where

C．when

D．which

题型：不详难度：| 查看答案

Walking does need a bit of practice _____ gravity has changed.

A．as if

B．in their turn

C．now that

D．as a result of

题型：不详难度：| 查看答案

The thought _____ they could cross the whole continent was exciting.

A．that

B．what

C．which

D．why

题型：不详难度：| 查看答案