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1. Where does smog come from?
2. What should people do if there is smog?
3. What happens to people if there is smog? (请自拟一句话作答)
Many people think smog comes from coal and some people think smog comes from cars.
2. What should people do if there is smog?
They should stay at home and not go outside.
3. What happens to people if there is smog? (请自拟一句话作答)
It makes people ill.
答案
1. Many people think smog comes from coal and some people think smog comes from cars.
2. They should stay at home and not go outside.
3. It makes people ill.
2. They should stay at home and not go outside.
3. It makes people ill.
