单项选择题

The big lake was contaminated with waste waters from nearby factories.

A.widened
B.blackened
C.polluted
D.mixed
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单项选择题
The parents have to restrain their daughter from playing cyber games.
A.disallow
B.reduce
C.prevent
D.confine
单项选择题
The manager talked over the requirement of the new job with him.
A.discussed
B.mentioned
C.accepted
D.rejected
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