The factory used 65 percent of the raw materials, the rest of which _____ saved for other purposes.
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A
is
B
were
C
was
D
are
推荐题目
 We must ________ every chance we have to improve our communicating ability.
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A
take care of
B
get along with
C
make use of
D
think highly of
Mother wanted to be a good provider, a role she ________ since her marriage to Father.
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A
shoulders
B
shouldered
C
is shouldering
D
has been shouldering
Please tell Tom not to leave the classroom unless he ______ that all the lights ______.
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A
makes sure; are turned off
B
makes sure; will be turned off
C
is made sure; are turned off
D
will make sure; will be turned off