单项选择题

______ does Mary write to her father Twice a week.

A．How long
B．How often
C．How far
D．How soon
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单项选择题
I heard some very ______ news this morning.
A．excited
B．exciting
C．being excited
D．have excited
单项选择题
The house ______ at the foot of the mountain belongs ______ our farm.
A．standing; to
B．stands; to
C．is standing; for
D．which stand; for
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