The doctors are doing all that they _____, but the old man is still not breathing properly.
#62988
A
shall
B
need
C
may
D
can
推荐题目
It is strange that he _________ in such an important examination .
#63158
A
failed
B
should fail
C
should have failed
D
fails
According to the school rules, no student __________ go out of the school after eleven o’clock at night without the teacher’s permission.
#63033
A
will
B
must
C
may
D
shall
One of our rules is that every student ________ wear school uniform while at school.(2012·辽宁)
#62437
A
might
B
could
C
shall
D
will
