The factory produces half a million pairs of shoes every day, 85% ____ sold abroad.
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A
of them are
B
of them is
C
of which is
D
of which are
推荐题目
More than one student ___ that experiment.
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A
has finished
B
have finished
C
are finishing
D
were finishing
The drug used to treat this disease causes bad side effects, some of which ________ deadly.
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A
is
B
are
C
was
D
were
While building a tunnel through the mountain, _______.
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A
an underground lake was discovered
B
there was an underground lake discovered
C
a lake was discovered underground
D
the workers discovered an underground lake