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高二下册《Project： Waste》优秀教案
He could be at home.（很可能）
He ought to be at home.（很可能）
He may be at home.（仅仅可能而已）
He might be at home.（或许, 非常不确定）
He might not be at home.（也许不在家）
He may not be at home. （比might可能）
He couldn’t be at home.（很可能不在家）
He can’t be at home.（一定不在家）
He isn't at home.（事实）
1.--Is John coming by train?
--He should, but he ____ not. He likes driving
his car.
A. must B. can C. need D. may
2.It has been announced that candidates(候选人)
____ remain in their seats until all the papers
have been collected.
A. can B.will C. may D. shall
3.--I heard they went skiing in the mountains last
winter.
--It ____ true because there was little snow there.
A. may not be B. won’t be
C. couldn’t be D. mustn’t be
I daren’t ask her for a rise. 我不敢请求她加薪.
How did you dare to tell her that?
I wonder whether he dare stand up in public.