单项选择题

Robots have already______ human tasks in the industrial field.

A．taken on
B．taken out
C．taken up
D．taken over
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单项选择题
The girl is not happy at the new school. She has______ friends there.
A．few
B．a few
C．little
D．quite a few
单项选择题
It was not ______midnight that they discovered the children were not in their bed
A．before
B．at
C．after
D．until
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