单项选择题

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

A．substitute
B．sign
C．proof
D．target
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单项选择题
Our lives are intimately bound up with theirs.
A．tensely
B．nearly
C．closely
D．carefully
单项选择题
However bad the situation is , the majority is unwilling to risk change.
A．eager
B．reluctant
C．pleased
D．angry
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