Her brother ______ be at home now, because he was seen playing basketball in the

题型：不详难度：来源：

Her brother ______ be at home now, because he was seen playing basketball in the stadium just now.

A．mustn’t

B．needn’t

C．can’t

D．shouldn’t

答案

解析

略

举一反三

―We didn’t see Robert at the opening ceremony yesterday.
―No, he _______ it.

A．mustn’t have attended	B．needn’t have attended
C．needn’t attend	D．didn’t need to attend

题型：不详难度：| 查看答案

There must be a time in every man’s lif ________.m

A．that he is in low spirits	B．which he is in low spirits
C．when he is in low spirits	D．then he is in low spirits

题型：不详难度：| 查看答案

She _______ have left school, for her bike is still there.

A．can’t

B．wouldn’t

C．shouldn’t

D．needn’t

题型：不详难度：| 查看答案

. ---The train hasn’t come yet. It is half an hour late.
--- Yes. It __________ here at 2:02 as scheduled.

A．must have been

B．should be

C．should have been

D．must be

题型：不详难度：| 查看答案

The light is still on. He _____ to turn it off when he _____ the room.

A．may forget: leave	B．must have forgotten : left
C．may forget : have left	D．could have forgotten : left

题型：不详难度：| 查看答案