单项选择题

(2004) Tom had opened the door____Mary had time to knock.

A．until
B．before
C．as
D．although
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单项选择题
(2004)____he came, he would take some pieces of news.
A．Every time
B．After
C．Since
D．Now that
单项选择题
(2003)Some people want to go hunting_____others want to go fishing.
A．or
B．because
C．while
D．since
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