---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
---Will you stay at home until your sister comes back? ---Sorry, I _______. I have a meeting and have to go in ten minutes.
#77351
A
can’t
B
won’t
C
mustn’t
D
needn’t
—Could I invite my friends to my birthday party?—Sorry, you ______.
#75471
A
can
B
can’t
C
could
D
couldn’t
--- I saw the Smiths at West Beijing Station this afternoon.--- You __________. They are still on holiday in Hawaii.
#62771
A
mustn't have
B
shouldn't
C
couldn't have
D
needn't
Sometimes smiles around the world ______ be false, hiding other feelings like anger, fear or worry.
#62758
A
must
B
would
C
should
D
can