单项选择题

A red flag was placed there as a token of danger.

A．sign
B．substitute
C．proof
D．target
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单项选择题
The council meeting terminatedat 2 o clock.
A．began
B．continued
C．ended
D．resumed
单项选择题
It is laid downin the regulations that all members must carry their membership cards at all times.
A．suggested
B．warned
C．stated
D．confirmed
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