. ------ The door was open.----- It ___________open. I had locked it myself and

题型：不详难度：来源：

. ------ The door was open.
----- It ___________open. I had locked it myself and the key was in my pocket.

A．can’t be

B．mustn’t be

C．can’t have been

D．mustn’t have been

答案

解析

略

举一反三

____________you leave now, since here so much work has not been done yet?

A．Shall

B．Must

C．Should

D．Can

题型：不详难度：| 查看答案

They took the injured straight to the nearest hospital. Otherwise some of them____________

A．died

B．would die

C．might have died

D．could die

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It is suggested that the students __ to read the bad books.

A．should not be let

B．must not be let

C．should not be allowed

D．must not be allowed

题型：不详难度：| 查看答案

He felt that there __ something wrong about it.

A．is

B．have

C．must be

D．must have

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–No wonder your boss blamed you. With all the work on hand, you ____ to the cinema last night.
A shouldn’t have gone B mustn’t have gone
C couldn’t have gone D shouldn’t go

题型：不详难度：| 查看答案