单项选择题

It's time ______ about the noise pollution late at night.

A．something will be done
B．everything is done
C．something was done
D．everything will be done
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A．defectiveB．elementaryC．invisibleD．straightforward
A．defective
B．elementary
C．invisible
D．straightforward
单项选择题
A．satisfactionB．know-howC．standpointD．temptation
A．satisfaction
B．know-how
C．standpoint
D．temptation
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