单项选择题

What steps could be taken to improve the air

A．Reduce the amount of nitrogen.
B．Increase the release of oxygen.
C．Reduce nitrous oxide emissions.
D．Stop industrial activities.
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单项选择题
Why did the Pentagon decide to dose 33 military bases
A．That is what the local people have expected.
B．That’s what the President has recommended.
C．To ensure a better livelihood of the local people.
D．To save the money and modernize the military.
单项选择题
The article would most likely be found in ______
A．a children’s magazine
B．a spoils magazine
C．a teen magazine
D．a family magazine
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