Recent campus tragedies show that safety measures are so important that we ____

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Recent campus tragedies show that safety measures are so important that we _______ take them too seriously.

A．can’t

B．should

C．mustn’t

D．shall

答案

解析

略

举一反三

______ for your help, We’d never have been able to get over the difficulties.

A．Had it not

B．Had it not been

C．If it were not

D．If we had not been

题型：不详难度：| 查看答案

_______ here tomorrow, he would show us his new pictures.
A Were he to come B. Should he come C. Had he come D. A and B

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_________, I could have done something.

A．Told you me earlier	B．Should you tell me earlier
C．Were you to tell me earlier	D．Had you told me earlier

题型：不详难度：| 查看答案

There is a little time left. We _____ hurry.

A．should

B．would

C．mustn’t

D．needn’t

题型：不详难度：| 查看答案

The seaman _____ swim only half way before he drowned.

A．could

B．might

C．was able to

D．would

题型：不详难度：| 查看答案