单项选择题

How can we avoid a worldwide water shortage in the future

A．We can invent ways of increasing rainfall.
B．We can develop ways of reusing water.
C．We may use less water.
D．We may build fewer steel plants.
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单项选择题
What kind of dispute strains the relationship between Japan and Russia
A．Debts.
B．Ideology.
C．Territory.
D．Economic.
单项选择题
Where do the young hatch
A．In a hole.
B．In the water.
C．Under the mother’s tail.
D．In the mother’s mouth.
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