．—What’s the matter with the man hanging his head there? —Well, if you _______ know, he was caught stealing my bike.
#88321
A
must
B
may
C
can
D
shall
推荐题目
It is strongly suggested that measures students to cheat in the exams.
#90539
A
be taken to prevent
B
be taken to forbid
C
are taken to prevent
D
are taken to forbid
If human beings had been a bit less greedy and cruel, more birds and animals _______dying out.
#89245
A
ought to avoid
B
could have been avoided
C
should have avoided
D
might have avoided
—How much shall I pay for the food?—You .This is free of charge.
#87632
A
mustn’t
B
needn’t
C
shouldn’t
D
couldn’t
There was a man crying over there．He _______ himself．
#88136
A
could hurt
B
might hurt
C
must have hurt
D
might have hurt
一Professor Li, ______the student start at once or wait a while? 一At once.
#88085
A
will
B
shall
C
can
D
may