—What's the matter with the man hanging his head there?—Well,if you ________ know, he was caught stealing my bike. 
#87063
A
must
B
may
C
can
D
shall
推荐题目
If you had joined the chat room ten minutes ago, you _____ what we were talking about.
#87950
A
will know
B
are knowing
C
can know
D
would have known
——Excuse me, ____________?    ——That's 110 yuan altogether, sir,
#90410
A
can I order, please
B
could I have the bill, please
C
how much is the meal we've had
D
please count the money, will you