—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
Lisa is going to clean her _______ room when she _________ back from school next weekend.
#77126
A
living; is coming
B
living; comes
C
live; come
D
lives; is going to come
Is there _______________ to sleep for half a day?
#77754
A
somewhere enough silent
B
somewhere silent enough
C
enough silent somewhere
D
anywhere silent enough
—I’ll call Bob and tell him the good news.—You __________ do that. He was here just now and heard it.
#62554
A
couldn’t
B
mustn’t
C
shouldn’t
D
needn’t