单项选择题

A．By greeting each other very politely.
B．By exchanging their views on public affairs.
C．By displaying their feelings and emotions.
D．By asking each other some personal questions.
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单项选择题
A．All the passengers were killed.B．The plane crashed in the night.C．No more survivors have been found.D．It’s too late to search for survivors.
A．All the passengers were killed.
B．The plane crashed in the night.
C．No more survivors have been found.
D．It’s too late to search for survivors.
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