单项选择题

The tragedy could have been ______ if the crew had followed safety procedures.

A．interfered
B．averted
C．intervened
D．distracted
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单项选择题
Every one has a legal ______ to provide the tax office with details of their earnings.
A．refinement
B．constriction
C．obligation
D．impulsion
单项选择题
Inspector Marshall was ______ for his professional and caring attitude.
A．commended
B．committed
C．communicated
D．commuted
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