-–Mary knows the city quite well.--She______ well have been there before.
#63125
A
need
B
could
C
should
D
may
推荐题目
We can eat in the dining hall. But we _______ eat in the classroom.
#75733
A
don’t
B
didn’t
C
can’t
D
aren’t
—Shall I tell you about it? —No, you _______. Sandy has told me already.
#76752
A
won’t
B
mustn’t
C
needn’t
D
can’t
—How much shall I pay for the phone call? —You________. This is free of charge.
#63321
A
shouldn't
B
can't
C
don't have to
D
mustn't
—________ you leave your room in such a mess?—Sorry，Mum.I forgot to tidy it up.
#62308
A
Must
B
Can
C
Should
D
Will
—How is the debate of your essay?—It ____ well, but I ____one of the key points.
#62979
A
might work; hadn’t forgot
B
needn’t have worked; forgot
C
could have worked; forgot
D
would work; hadn’t forgot