—Listen！Helen is singing in the next room.—It _____be Helen .She has gone to Beijing.
#75780
A
should
B
mustn’t
C
may
D
can’t
推荐题目
You'd better not ride the bicycle on snowy days; you ______ fall．
#62235
A
must
B
might
C
have to
D
ought to
—May I play computer games, Mum?—No, you ______. You’ve got a lot of homework to do.
#78144
A
needn’t
B
mustn’t
C
wouldn’t
D
won’t
—Mum, I'm tired.—Well, if you ________ go to bed after midnight every night, what do you expect?
#62334
A
will
B
may
C
should
D
can
The lady in this photo ________ be over fifty! She looks so young!
#74525
A
mustn’t
B
must
C
can’t
D
can