There _____ be a shortage of water in Yunnan? I wonder. You know it is in the s

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There _____ be a shortage of water in Yunnan? I wonder. You know it is in the southwest of China where there used to be adequate rain .
A could B must C can D should

答案

解析

略

举一反三

______ it have been the failure to pick up directions from the ground control that caused the air crash?

A．Must

B．Could

C．Would

D．Should

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—You just think of yourself! You kept me wailing for at least three hours．
—I" m sorry that you _____________ think so．

A．would

B．should

C．could

D．might

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– Is your brother going to Jack’s birthday party tonight?
– I am not sure. He _____ go to the concert with his girlfriend instead.

A．ought to

B．has to

C．might

D．must

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Living in such a high mountain _________be cold．

A．should

B．can

C．may

D．must

题型：不详难度：| 查看答案

— Must I take a taxi?
—No, you______. It is only a

six minutes’ walk.
A. don’t have to B. must C can’t D ought to

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