--- Whose backpack is this?--- It        be Mary’s. She is looking for hers.
#74249
A
can
B
must
C
may
D
can’t
推荐题目
My neighbor was like a cat on hot bricks before her driving test.
#77855
A
very exited
B
sad
C
relaxed
D
very nervous
You ______ to the meeting this afternoon if you have something important to do.
#76592
A
needn’t to come
B
don’t need come
C
don’t need coming
D
needn’t come
—Please don’t tell anybody.—I     . I promise.
#62237
A
can't
B
don’t
C
won’t
D
mustn’t