单项选择题

It was not until it got dark_________ working.

A．that they stopped
B．when they stopped
C．did they stop
D．that they didn’t stop
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单项选择题
It is from my grandparents________ I learned a lot.
A．who
B．whom
C．that
D．which
单项选择题
Small talk is a good way to kill time, make friends and____ something with others.
A．argue
B．replace
C．share
D．match
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