单项选择题

I was ______ the point of telephoning him when his letter arrived.

A．to
B．on
C．at
D．in
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单项选择题
After the guests left, she spent half an hour ______ the sitting-room.
A．ordering
B．arranging
C．tidying up
D．clearing away
单项选择题
A thief who broke into a church was caught because traces of wax, found on his clothes, ______ from the sort of candles used only in churches.
A．had come
B．coming
C．come
D．that came
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