【答案解析】[参考范文]
Dear John,
I am a student of China, and I am writing for the purpose of telling you that I am going to study in your country and we will share one apartment during that period.
It is necessary for us to tell each other some of our living habits so that we will have a more smooth life there. Generally speaking, I am an early bird. I always go to sleep at 10 pm and get up at 6 am. Second, I think a clean and tidy room is helpful for us to keep a good mood. What"s more, I frankly hope that you could tell me the campus life there and then we may reach agreements on our living habits later, which I"m sure will benefit our following days.
I"m looking forward to your responses.