---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
All of us must do_______ to help protect the environment，or we will have more hazy weather雾霾天气.
#74653
A
something useful
B
anything useful
C
useful something
D
useful nothing
--- Shall I get one more cake fro you, David?--- Thanks, but you ______. I’ve had enough.
#63054
A
shouldn’t
B
mustn’t
C
can’t
D
needn’t
-Mr. Zhou, _____ the Iphone belong to Alice?-I’m afraid not. It may be John’s, but I’m not sure.
#75324
A
can
B
must
C
will
D
need