单项选择题

What is important in people's lives（）

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

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单项选择题

Who set up the National Audubon Society many years ago（）

A．The United States.
B．Some persons loving birds.
C．People who think of the birds.
D．Audubon's future generation.

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.