单项选择题

When he was a post office clerk, secretaries were better paid because ______ .

A．they were in shortage
B．they were better trained
C．they worked longer hours
D．they had greater responsibility
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单项选择题
It is not too late, but ______ action is needed.
A．right
B．urgent
C．hurry
D．prompt
单项选择题
The car one drives may show his her ______ or social position.
A．curiosity
B．status
C．importance
D．reputation
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