Though the ship sunk, all the people on her____ be resuced.A．couldB．shouldC．had

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Though the ship sunk, all the people on her____ be resuced.

A．could

B．should

C．had to

D．were able to

答案

解析

could表示过去的能力，were able to表示过去做成了某事。句意：虽然船沉了但是所有的人获救了。

举一反三

Hurry up, if you____ there with us.

A．go

B．will go

C．would go

D．could go

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---Could I borrow your motor bike? ----Yes, of course, you____.

A．might

B．could

C．can

D．should

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.– She was in clas on Friday afternoon, but no one has seen her since.
---She _____ an accident.

A．might have

B．might have had

C．may have

D．ought to have had

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Thank you very much. Without your help, I _______the exams.

A．could not pass	B．could not have passed
C．did not pass	D．could not passed

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Jenny ______ with him at that time, for I was having dinner with her in my home.

A．can’t have been	B．mustn’t have been
C．must be	D．may be

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