—Listen ! Helen is singing in the next room.—It __________ be Helen. She is in Tianjin now.
#76500
A
can’t
B
mustn’t
C
may not
D
shouldn’t
推荐题目
I hear you've got some new Australian coins. __________ I have a look?
#76697
A
Do
B
May
C
Shall
D
Should
I’m sorry, Bill. I _________ the book to you last week, but I was so busy that I forgot to do so.
#63435
A
must have returned
B
could return
C
should have returned
D
might return
—Paul has lost her iphone 5. —No, it ___be in her bag. I _______ hear it.
#74105
A
can; can
B
must; may
C
should; may
D
must; can