―Is that Miss Liu having dinner over there?―It     be her. She has gone to New York for an important business meeting.
#87968
A
mustn’t
B
needn’t
C
can’t
D
shouldn’t
推荐题目
 Look at the clock! It's time ______ work.
#90300
A
we started
B
we'll start
C
we're starting
D
we have started
 I _______ have been more than six years old when the accident happened.
#89803
A
shouldn’t
B
couldn’t
C
mustn’t
D
needn’t