------ May I smoke here?------ If you____, that's the smoking section over there.
#63312
A
should
B
could
C
may
D
must
推荐题目
It was very kind of you to do the washing-up but you _____ it
#62541
A
needn’t do
B
shouldn’t do
C
mustn’t have done
D
needn’t have done
One of our rules is that every student_____wear the school uniform while at school．
#63218
A
might
B
could
C
shall
D
will
Keep up a good state of mind even if you _____ fail plenty of times.
#62540
A
must
B
will
C
can
D
should