-Is that your best friend Kitty?- No, it _________ be her. She flew to Singapore yesterday.
#75003
A
mustn’t
B
may not
C
needn’t
D
can’t
推荐题目
--- He worked out such different questions at a very young age.--- Oh, he ______ a very smart student then.
#63131
A
could have been
B
should have been
C
might have been
D
must have been
---- May I smoke here?---- If you , choose a seat in the smoking section
#62881
A
should
B
could
C
must
D
may
What way can you think of ______ the mice in the room?
#78055
A
how to kill
B
to kill
C
killing
D
killed