题目内容：
根据短文内容，从短文后的七个选项中选出正确的填入空白处。选项中有两项为多余选项。回答第题。
A. That kept cities very small.
B. The rest live in small towns.
C. The effects of urban living on people should be considered.
D. Soon many other industrial nations become urban societies.
E. But even 200 years ago, only a few people could live in cities.
F. Modernization drew people to the cities and made farmers more productive.
G. Modern cities have destroyed social relations and the health of human beings.
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