单项选择题

Air and water are ________ to life.

A．indispensible
B．indispensable
C．indisposed
D．indisputable
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单项选择题
In that country, football is second only ________ baseball.
A．to
B．with
C．from
D．of
单项选择题
Whenever his neighbors need a help, he always goes ________ his way to give them a hand.
A．over
B．out of
C．off
D．in for
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