单项选择题

The battle between Californians and federal regulators is about ______.

A．control over the price of power
B．necessity of removing price caps
C．hiking the energy prices in California
D．a regulation concerning power supply
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单项选择题
Leisure is the time used ______.
A．to seek satisfaction
B．to earn money
C．to fulfill the obligations
D．to fulfill any social requirement
单项选择题
Whenever it is leisure time, people will ______.
A．find it difficult to decide what to do
B．make a careful plan in what to do
C．do anything they are interested in
D．go to the playground
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