单项选择题

To compensate for the substantial decline in the availability of fossil fuels in future years, we will have to provide at least an ______ alternative energy source.

A．anticipated
B．official
C．equivalent
D．emotional
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单项选择题
The meeting was ______ over by the mayor to discuss the tax raise in the city.
A．presumed
B．propelled
C．presided
D．pricked
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