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
推荐题目
As it turned out to be the most important meeting in the year, you ____ so casually.
#62823
A
Shouldn’t dress up
B
shouldn’t have dressed up
C
needn't have dressed up
D
couldn’t dress up
— No wonder you caught a cold. You __________ out last night without a coat. — I know how silly I was.
#63493
A
should have gone
B
shouldn’t have gone
C
can’t have gone
D
mustn’t have gone
—Is Mary coming by plane?—He should ,but he _____not. He likes traveling by train.
#63413
A
must
B
can
C
need
D
may
These broken pieces of plates don’t fit together, they ___________ parts of different ones.
#76107
A
can’t be
B
can be
C
mustn’t be
D
must be
Must I clean my rabbit’s hutch every day? － No, you __________.
#76783
A
mustn’t
B
needn’t
C
can’t
D
don’t