单项选择题

I would like to take this opportunity to express my sincere ______ of your help.

A．appreciation
B．appearance
C．preparation
D．appointment
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单项选择题
He just ______ my suggestion at the meeting yesterday.
A．put away
B．shut down
C．showed off
D．brushed aside
单项选择题
The reason why the car stopped was ______ .
A．because the road was not good
B．that the road was not good
C．due to the bad road
D．because of the bad road
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