---You ought to have warned him of the danger! --- ____! But he wouldn’t listen!

题型：不详难度：来源：

---You ought to have warned him of the danger!
--- ____! But he wouldn’t listen!

A．So did I

B．So ought you

C．So I did

D．So I have

答案

解析

句意：你本应该警告他有危险！我第五警告了，但是他不听。ought to have done 本该做某事而实际上没有做，so + 主语+ 助动词，表示对上句的肯定，根据语境警告的动作在过去所以用助动词did，故选C。

举一反三

Only after__________ his work __________ to see his grandfather.

A．finishing; did he go	B．he finishes; did he go
C．he finished; he went	D．having finished; he went

题型：不详难度：| 查看答案

Not a single word_______when _______about his late mother.

A．he said, asked	B．did he say, asked
C．he said, asking	D．did he say, asking

题型：不详难度：| 查看答案

Only when we begin our college life______the importance of English.

A．we realize

B．we will realize

C．have we realized

D．do we realize

题型：不详难度：| 查看答案

So serious that all the persons on board were killed.

A．was the accident

B．did the accident

C．the accident was

D．the accident did

题型：不详难度：| 查看答案

So difficult __________ it to adapt to the academic requirements of a Western university that I determined to take a preparation course.

A．I have felt

B．have I felt

C．did I feel

D．I did feel

题型：不详难度：| 查看答案