单项选择题

The telephone kept ______ until I answered.

A． ring
B． rang
C． ringing
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单项选择题
What are they going to do
A． Watch a football game.
B． Watch a basketball game.
C． Play a football match.
单项选择题
Today his room is ______ as usual.
A． so dirty
B． as dirty
C． more dirty
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