单项选择题

How did the members of the Society try to improve the environment（）

A．They made laws that protect birds.
B．They taught young people, helped pass laws that protect animals and so on.
C．They tried to make the world better.
D．Both Ｂ and Ｃ.

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单项选择题

The idea of this article is that （）

A．birds are important in our lives
B．animals are important in our lives
C．nature is important in our lives
D．Audubon was especially interested in birds

单项选择题

What is important in people's lives（）

A．The earth.
B．Birds.
C．Scientists.
D．The natur