单项选择题

Some hard plastics can be______ metals in manufacturing machine parts.

A．substituted for
B．taken the place of
C．replaced in
D．given way to
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单项选择题
Where do you think______
A．he is likely to be
B．is he likely to be
C．is he likely being
D．he is likely being
单项选择题
It was because of your immediate help______ I managed to pass the test.
A．which
B．who
C．that
D．when
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