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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I only know the man by ______ but I have never spoken to him.
A. chance
B. heart
C. sight
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Imagine that you ______ onto another planet.
A. send
B. were sent
C. sent
D. had been sent
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