—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
—Can we run across the road now?—No, we _ . We have to wait until the light turns green.
#75388
A
needn't
B
mustn't
C
couldn't
D
shouldn't
－What is your math teacher like, Nick?－She is very kind _________ she looks a little serious.
#77143
A
although
B
if
C
so
D
until
--Why are your eyes so red? You _______ have slept well last night.
#62776
A
can't
B
mustn't
C
needn't
D
won't
--Listen! Is it Linda singing in the next room? --No, it __________ be her. She is still in Shanghai.
#78253
A
can’t
B
couldn’t
C
may not
D
might not