题目内容
He _____ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside．
| A．should | B．must | C．wouldn’t | D．can’t |
B
解析试题分析：must have done表示对于过去动作所做的确定的推断，意为“（过去）一定做了某事”。根据He wouldn’t be enjoying …推断，他一定完成了工作。should have done表示“（过去）该做某事而没有做”；wouldn’t have done表示“（过去）实际上做了某事”； can’t have done表示对于过去动作否定的推断，意为“（过去）不可能做了某事”。故答案为A.
考点：情态动词的推断用法。
Some people ________ not have plans yet for New Year’s Eve, but others know exactly what they will be doing.
| A．can | B．must | C．need | D．may |
-- Who do you think _____ such a foolish thing?
-- It _____ Tom, but I’m not sure.
| A．could have done; may have been | B．could have done; must have been |
| C．should have done; may be | D．must have done; might have been |
Something terrible _________ if he didn’t come to the bar as he always did.
| A．should happen | B．might happen |
| C．must have happened | D．can have happened |
If Doric continues doing things like that, he ______ face the music one day！
| A．can | B．should | C．would | D．shall |
A mistake ______ have been made on our bill. We didn’t order any fish today.
| A．should | B．would | C．could | D．must |
The school rules state that no child ___ be allowed out of the school during the day , unless accompanied by an adult .
| A．may | B．dare | C．shall | D．must |
— Isn’t that Ann’s husband over there?
— No, it ________ be him — I’m sure he doesn’t wear glasses.
| A．must not | B．can’t | C．won’t | D．may not |
One of our rules is that every student ____ wear school uniform while at school.
| A．shall | B．could | C． might | D．will |