Dear Bill,

I’m glad to receive your letter, thank you for your caring for the weather and my health．Now I’d like to tell you something about the smog．

Recently the smog has occurred a lot of times．It has done great harm to our daily life．Many traffic accidents happened just because of the heavy smog weather, more and more people have to go to see the doctor because the serious disease caused by the smog．Anyway, people’s life is greatly affected．

With the help of Under the Dome, People have further realized the great harm caused by the smog and the importance of protecting the environment．People all over the country are taking measures to reduce the smog weather．

As far as I’m aware, I will go to school by bike or on foot, and I won’t throw the waste anywhere．in addition, I will tell the people I meet to protect the environment as possible as they can．Would you like to tell me some good ideas? I’m looking forward to your reply．

Yours,

Li Hua