单项选择题

To maintain public ______ is not only the policemen' s duty but also every citizen's responsibility.

A．custom
B．confidence
C．security
D．simplicity
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单项选择题
One new ______ to learning a foreign language is to study the language in its cultural context.
A．approach
B．solution
C．manner
D．road
单项选择题
Stop asking all these personal questions! It is bad manners to be ______.
A．inquisitive
B．impatient
C．acquisitive
D．informative
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