---Is the girl in the red skirt your sister?---No. It _______ be her. She has flown to Australia.
#75610
A
can’t
B
needn’t
C
must
D
may
推荐题目
—I wonder where Peter is.He said he’d be here for lunch.—Don’t worry！He________be caught in the rush hour.
#62278
A
will
B
should
C
can
D
may
--- I once got lost during my first visit to Beijing.-- Oh, did you? You _______ me as your guide.
#62933
A
might have asked
B
could ask
C
would have asked
D
would ask
---Whose book is this? ---It ______ be Linda’s. It has her name on it.
#76740
A
can
B
may
C
must
D
need
—How did you like the concert last night ?—I enjoyed it very much, but the dancers _____ a better job．
#63517
A
could have done
B
must have done
C
could do
D
had done