It is hard to say what kind of person he is．Sometimes he is very friendly; at other times he ___ be very cold．
#62687
A
can
B
must
C
will
D
shall
推荐题目
You ______ be hungry already—you had lunch only two hours ago!
#75956
A
wouldn’t
B
can’t
C
mustn’t
D
needn’t
Often he______ sit for hours doing nothing at all when he was in low spirits.
#63514
A
should
B
would
C
could
D
might
We the difficulty together, but why didn’t you tell me?
#63184
A
need have faced
B
can have faced
C
could have faced
D
must have faced
You ______ write the poem down. Our teacher will give us a copy.
#75235
A
can’t
B
shouldn’t
C
needn’t
D
mustn’t
Without gravity, we _____ walk on the ground as freely as we do now.
#63085
A
couldn’t
B
mustn’t
C
shan’t
D
needn’t