Why ____ you keep troubling your mother with such question while he is busy . A．

题型：不详难度：来源：

Why ____ you keep troubling your mother with such question while he is busy .

A．can

B．will

C．would

D．must

答案

解析

must 此处表“偏要”之意。

举一反三

I don""t think it any use taking with him , you ____ as well leave him alone .

A．might

B．must

C．can

D．could

题型：不详难度：| 查看答案

— You ought to have called her yesterday . — Yes , I know I ____ .

A．ought to

B．ought go have

C．ought have done

D．ought to have called

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The work ____ be finished in such a short time .

A．wasn""t able to

B．couldn""t

C．ought

D．could

题型：不详难度：| 查看答案

This car looks like mine , yet it isn""t . Whose ____ .

A．can

B．could

C．may

D．must

题型：不详难度：| 查看答案

He ____ have the ticket if I buy it .

A．will

B．must

C．shall

D．ought、

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