—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
The boy is afraid of darkness, so he _____ out at night.
#74987
A
dares to go
B
doesn’t dare go
C
dare not go
D
dares not to go
Sir, you ________ take this seat. It’s just for the old.
#62259
A
won’t
B
can’t
C
oughtn’t to
D
needn’t
—Who’s that boy reading in the study ? Is it David?—It __________ be David. I saw him go home just now.
#74950
A
must
B
can’t
C
may
D
shouldn’t
Cheating is strictly forbidden in this important exam, and students ______ bring any reference books into their classrooms, cell phones included.
#62589
A
will not
B
should not
C
mustn’t
D
need not