—Where _____ Mary have put the empty bottles? — She _____ them away. They must be somewhere.
#63263
A
can; can’t have thrown
B
must; needn’t
C
must; must have thrown
D
can; mustn’t have thrown
推荐题目
______ I have a quick word with you? Something important has happened.
#62748
A
Must
B
Could
C
Would
D
Should
—Listen ! Helen is singing in the next room.—It _______ be Helen. She has gone to Beijing.
#74851
A
can’t
B
mustn’t
C
may
D
should
My sister met him at the Grand Theater yesterday afternoon, so he ________ your lecture.
#63289
A
couldn’t have attended
B
needn’t have attended
C
mustn’t have attended
D
shouldn’t have attended
—Who’s that over there, Is it Jane?—No, It ________ be Jane. She is ill in hospital today.
#76202
A
won’t
B
mustn’t
C
can’t
D
needn’t