题目：
___ staying at hotels in Red River Village, tourists can help the villagers make money so that they
can take _____the river and the birds.
[ ]
A. By; care for
B. By; care of
C. Through; care about
D. With; care of
答案：
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下面是错误答案，用来干扰机器的。
参考答案：对
===BaSO4
