单项选择题

Another natural ______ that contributes to the welfare of the country is water.

A．source
B．mineral
C．power
D．resource
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单项选择题
Isolated from the outside world, the villager would often talk with his ______ friends when night fell.
A．imaginary
B．imaginative
C．imagining
D．imaginable
单项选择题
Next to natural resources comes the ability to ______ them to use.
A．take
B．set
C．get
D．turn
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