单项选择题

The old couple tried to accuse their children of neglecting their ___________ duties.

A．docile
B．tame
C．obedient
D．filial
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单项选择题
The man who _________________ taxes in the area was charged with bribery by the police.
A．received
B．collected
C．gathered
D．accumulated
单项选择题
____________ cold and windy, most people stayed indoors.
A．Being
B．It was
C．It being
D．Having been
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