单项选择题

They worked together and so______the task in a month.

A．carried out
B．carried through
C．carried on
D．carried off
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单项选择题
The firm decided after a board meeting that the old machinery in the factories______with.
A．do away
B．would be done away
C．should do away
D．should be done away
单项选择题
It's high time that the girl______sent to school.
A．were
B．was
C．be
D．is to be
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