—Has your father got up?—Sorry, I’m not sure. He __________ got up. Please go a

题型：不详难度：来源：

—Has your father got up?
—Sorry, I’m not sure. He __________ got up. Please go and see for yourself.

A．must have

B．can’t have

C．would have

D．might have

答案

解析

must have done一定做过某事，用于肯定句中，疑问句否定句中用can或could来代替，表示对过去事实比较肯定的猜测。might have done可能做了某事，用于肯定句和否定句中，表示对过去事实不太肯定的猜测。由I’m not sure可知并不肯定，故选D。

举一反三

—Why aren’t they here yet?
—They_____ the bus.

A．can have missed	B．must be late for
C．may have missed	D．might be late for

题型：不详难度：| 查看答案

—Where ____ Margaret have put the empty bottles?
—She ______ them away. They must be somewhere.

A．can; can’t have thrown	B．must; needn’t
C．must; must have thrown	D．can; must throw

题型：不详难度：| 查看答案

—We need a person badly to think up such an idea .
—_____ the new comer have a try ?

A．Shall

B．May

C．Should

D．Need

题型：不详难度：| 查看答案

I’d rather you did some housework when you are free ,but you______ .

A．didn’t

B．shouldn’t

C．weren’t

D．don’t

题型：不详难度：| 查看答案

The door______. Better have it repaired .

A．isn’t shut	B．hasn’t been shut
C．won’t be shut	D．won’t shut

题型：不详难度：| 查看答案