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A．see
B．seeing
C．to see
D．to seeing
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单项选择题Which of the following might be the best title of this passage

A．The Nature Conservancy
B．Ways to Protect Wildlife
C．Bud Cook and His Work in Poconos
D．Pocono Mountains -- the Last Great Places

单项选择题We learn from the passage that______.

A．the population in the Pocono area is growing
B．wildlife in the Pocono area is dying out rapidly
C．the security of the Pocono residents is being threatened
D．farmlands in the Pocono area are shrinking fast