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
We ________ the difficulty together, but why didn’t you tell me?
#63106
A
should face
B
might face
C
could nave faced
D
must have faced
Today, we _____ work as hard as people did in the past.
#76507
A
mustn’t
B
can’t
C
shouldn’t
D
don’t have to
This printer is of good quality. If it ________ break down within the first year, we would repair it at our expense.
#62548
A
would
B
should
C
could
D
might