—Listen! Is Mary singing in the next room?—No. It _______ be Mary．She has gone to Shanghai for an important meeting.
#74311
A
can’t
B
may not
C
mustn’t
D
needn’t
推荐题目
—These grapes look really beautiful. —They _______! See the price $3.99 a pound. Very expensive, aren’t they!
#62527
A
might
B
could
C
would
D
should
I ________ work out the problem at first, but after my teacher showed me an example, I ________ get the answer easily.
#63120
A
couldn’t; was able to
B
can’t; could
C
wasn’t able to; could
D
was able to; was able to
I'm going to Europe on vacation together with John if I ________ find the money.(2012·全国Ⅱ)
#62442
A
can
B
might
C
would
D
need
One of the few things you ______ say about English people with certainty is that they talk a lot about the weather.
#63660
A
need
B
must
C
can
D
should