单项选择题

But, in our enthusiasm to discover our heritage, we are mining the very scenery we go to enjoy, damaging natural habitats,______down footpaths, disturbing wild- life, polluting the air and dropping litter.

A．wearing
B．treading
C．falling
D．cutting
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单项选择题
The Freedom of Information Act gives private citizen______government files.
A．release from
B．excess of
C．redress of
D．access to
单项选择题
The oil price rise reactivated the boom in commodity prices and______inflation, which reached an annual rate of 15 percent in the spring of 1974.
A．boosted
B．harnessed
C．staggered
D．embarked
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