John, look at the time. ______ you play the piano at such a late hour ?A．MustB．C

题型：不详难度：来源：

John, look at the time. ______ you play the piano at such a late hour ?

A．Must

B．Can

C．May

D．Need

答案

解析

此处考查情态动词表示推测的用法。should have done表示过去应该做而实际并没有做，因此淘汰A项。would不用来表推测，因此淘汰C项。B基与D项虽然都可以表示推测，但B项表肯定意义而D项表示否定推测，意为“不可能”，根据句意：他肯定已完成了他的工作；不然，他就不会在海边玩得那么愉快了。可知此处需要肯定意义，因此淘汰D项。

举一反三

The thief ________ in from the kitchen window as the door was closed.

A．may climb

B．must have climbed

C．could have climbed

D．should have climbed

题型：不详难度：| 查看答案

— Turn off the TV, Jack. ____ your homework now?

— Mum, just ten more minutes, please.

A．Should you be doing

B．Shouldn’t you be doing

C．Couldn’t you be doing

D．Will you be doing

题型：不详难度：| 查看答案

He hurt his leg climbing the mountain; otherwise, he _____ the meeting.

A．will attend

B．had attended

C．would have attended

D．would attend

题型：不详难度：| 查看答案

Sir, you ______ be sitting in this waiting room. It is for women and children only.

A．oughtn’t to

B．can’t

C．won’t

D．needn’t

题型：不详难度：| 查看答案

I _____ have written to him because he phoned me shortly afterwards.

A．ought to

B．must

C．couldn’t

D．needn’t

题型：不详难度：| 查看答案