题目内容
—Why does Mary look so worried today?
—I’m not sure, but she _____ a small accident driving here.
| A．must have | B．might have | C．must have had | D．might have had |
D
解析试题分析：考察情态动词用法。“情态动词+have done”表示对过去情况的虚拟或者推测；“情态动词+动词原形”表示对现在情况的虚拟或者推测。句义：—为什么Mary今天看起来很担忧啊？—我不清楚，也许是在开车来的时候，出了点小事故吧！根据句义可知是对过去发生的事情的推测。Must have done一定做了某事，表示对过去所发生的事情有把握的肯定推测。Might have done也许做了某事，表示没有把握的推测。故D正确。
考点：考察情态动词用法
名校课堂系列答案-- What’s wrong with your pen?
-- The ink ___________ come out.
| A．can’t | B．won’t | C．hasn’t | D．doesn’t |
_____ you pass me the plate on the table?
| A．Can | B．Could | C．May | D．Must |
They have got lost, or had an accident.
| A．can | B．might | C．must | D．mustn’t |
— Can I pay the bill by check?
— Sorry, sir. But it's the management rules of our hotel that payment ______be made in cash.
| A．shall | B．need | C．will | D．can |
No student ______ go out of the school campus after 10:00 at night without permission according to the school regulations.
| A．shall | B．must | C．would | D．should |
The manager commanded that the work ____ finished by the end of this month.
| A．should be | B．will be | C．must be | D．ought to be |
―Do you know where David is? I couldn’t find him anywhere.
―Well. He ______ have gone far — his coat’s still here.
| A．needn’t | B．can’t | C．mustn’t | D．wouldn’t |
When we were young, every evening my brother and I ___ stay at home waiting for my mother?
| A．might | B．would | C．should | D．could |