Dear Jack,
I am studying in Shanghai now. I have a day of today. Now let me tell you something about Shanghai. In our country people drive cars on the left side of the road, but in Shanghai, on the right side. Many people in London go to work by car, while most people in Shanghai go to work by bike. The weather of Shanghai is better than London's. It's usually fine in Shanghai, but we have so many cloudy days in London. Students here work hard in their studies and a lot of people can speak English. People here are all very friendly. So I make a lot of friends here. That's all. Please write to me soon.
Yours,
Lucy