Persons under 16 ______ not be employed in our country．
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A
shall
B
can
C
may
D
will
推荐题目
After her son’s death, the old lady _____ sit at the window, deep in thought．
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A
would
B
should
C
could
D
might
The teachers in the city demanded that their pay _____ close to the level of civil servants.
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A
should be raised
B
would raise
C
would rise
D
should be risen
—Guess what？ I have got A for my term paper.—Great!You _______ read widely and put a lot of work into it.
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A
must have
B
should
C
must
D
should have
–May I smoke in the room? --No, you______________. It’s a non-smoking room..
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A
mightn’t
B
won’t
C
needn’t
D
mustn’t
Since the road is wet this morning, _____ last night.
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A
it must rain
B
it must be raining
C
it must have rained
D
it must have been rain