--- Who ______ it be that is singing in the next room?--- It _______ be Lucy, but I am not sure.
#86933
A
can ; may
B
may ; can
C
can; must
D
must; may
推荐题目
 Frankly speaking, I'd rather you________anything about it for the time being.
#86409
A
have done
B
haven't done
C
don't do
D
didn't do
He       have come here yesterday,        he?
#89653
A
mustn’t;did
B
couldn’t;has
C
mustn’t;haven’t
D
must;didn’t
It is very kind of you to do the washing-up, but you    it.
#88218
A
mustn’t have done
B
wouldn’t have done
C
mightn’t have done
D
didn’t have to do