满分5 > 高中英语试题 >

It is still unknown_______ caused the ac...

It is still unknown_______ caused the accident last Saturday.

A.that

B.when

C.what

D.how

 

C 【解析】本题考查主语从句。It是形式主语,_______ caused the accident last Saturday是主语从句,引导词要做caused 的主语, 所以用what。
复制答案
考点分析:
相关试题推荐

____ wants to stay in a hotel has to pay their own.

A.Anyone

B.The one

C.Whoever

D.Who

 

查看答案

The experiment shows that proper amounts of exercise ,if _______regularly, can improve our health.

A.being carried out

B.carrying out

C.carried out

D.to carry out

 

查看答案

It is one of the funniest things ____on the Internet so far this year.

A.finding

B.being found

C.to find

D.found

 

查看答案

To learn English well, we should find opportunities to hear English_______ as much as we can.

A.speak

B.speaking

C.spoken

D.to speak

 

查看答案

---You effort is sure to pay __________

---Thank you for you encouragement.

A.off

B.back

C. for

D.down

 

查看答案
试题属性

Copyright @ 2008-2019 满分5 学习网 ManFen5.COM. All Rights Reserved.