FIVE QUESTIONS about air quality...

1. Compared to other places that you have been to, do you feel that Hong Kong's air quality is good or bad? Why?
2. Have you ever tried to contribute to making Hong Kong's air cleaner? If yes, how? (um...bad phrasing)
   
3. Have you or anyone you know ever had health issues that are related to air pollution? If yes, what is it?
   
4. In all the places that you have been to, which place do you think has the best air (quality)? Why?
5. How do you think Hong Kong could learn from the place you've mentioned in terms of making the air better?

Great...I am not only very unoriginal, I am also not sure whether this is what we should do...=.="