“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
-- ______ I come to London alone? -- Don’t worry, I ______ be meeting you at the airport.
#87751
A
Must; shall
B
May; might
C
Shouldn’t; have to
D
Can’t; can
You would have helped your mother do some housework. But you ____.
#89579
A
don’t
B
didn’t
C
wouldn’t
D
weren’t
The doctors insisted that the patient was in danger, and that he __________on immediately.
#87524
A
was operated
B
be operated
C
should operate
D
operated