.—She must have gone back to the valley. —No, she_________. The entrance to it was nowhere to be found.
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A
mustn’t
B
needn’t
C
couldn’t
D
may not
推荐题目
Did you predict that many students ______ up for the dance competition?
#87681
A
would sign
B
signed
C
have signed
D
had signed
— How’s your tour around the North Lake? Is it beautiful? — It ______ be, but it is now heavily polluted.
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A
will
B
would
C
should
D
must
Tony ________ full marks, but he was so careless as to make a spelling mistake.
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A
could have gained
B
can have gained
C
must have gained
D
must gain
There is no light in the room.They ____asleep.
#90312
A
should have gone to
B
must be
C
could go
D
might be going
Though it is the first time they have met, they talked as if they _____ friends for many years.
#86663
A
are
B
were
C
had been
D
have been