二、社会
1. Nowadays males and females are working out of town. They are spending more time and energy at work and less at home. Do advantages of this employment trend outweigh negative effects?
2. Nowadays, more and more children are becoming obese. Give possible reasons and suggestions.
3. While people flood into big cities to seek jobs and happy life there is a tendency for people to move out. What problems do big cities have?
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