“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
推荐题目
There used to be a small school,___________?
#90055
A
was there
B
wasn’t it
C
usedn’t there
D
usedn’t it
Tom always feels it necessary that he ________English.
#87314
A
learns
B
would have learned
C
learn
D
were to learn
--Don't be so disappointed.I’m sure that you can do better in the next exam. --Yes, but I ____ this time.
#89035
A
should be more careful
B
could be more careful
C
should have been more careful
D
must have been more carefully