-The terrible accident might not have happened had the driver been more careful. --But he _____.
#86997
A
wasn’t
B
didn’t
C
hadn’t
D
doesn’t
推荐题目
“I know she was in because I heard her radio, but she didn’t open the door.” “She___the bell.”
#88102
A
may not be hearing
B
may not have heard
C
must not have heard
D
must not be hearing
— Hi, Mary. Any idea where Bill is?— He ______ in the library. I saw him reading books there just now.
#88057
A
shall be
B
should have been
C
must be
D
might have been
It’s too bad that I failed in the math exam. If only I ______ hard at it!
#87203
A
worked
B
had worked
C
has worked
D
would work
—Mary broke up with me!—You _____ have forgotten about the Valentine's Day．
#86967
A
shouldn't
B
couldn't
C
needn't
D
mustn't
--What do you think of it?--I think it is a thing of importance that it ____ done soon.
#90140
A
is
B
is to be
C
be
D
to be