．—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
The manager of the hotel requests that their guests ______ after 12:00 p.m.
#86964
A
not to play loud music
B
not play loud music
C
don’t play loud music
D
couldn’t play loud music
— But for the bird flu ( 禽流感 ) in Vietnam in the summer of 2004，I ______ you to go to Vietnam for sightseeing. — Really？ What a pity！
#88030
A
have taken
B
had taken
C
should have taken
D
would have taken
—Shall I help clean the kitchen, Mum?—Thank you.But you ________ it because I can do it myself.
#86356
A
mustn't have done
B
wouldn't have done
C
mightn't have done
D
haven't got to do
If I hadn’t stood under the ladder to catch you when you fell, you ____ now.
#86941
A
wouldn’t be smiling
B
couldn’t have smiled
C
won’t smile
D
didn’t smile
Our teachers often suggest we ______ take it easy when facing any difficulty.
#86653
A
had
B
could
C
would
D
should