...........................[your city]
...........................[your country]
Dear Richard
Thank you for your letter.I haven't writen you because I was busy enough with my scholastic project.
In your letter you asked me about my life. Firstly we've got a huge house with two floors and a backyard as well.As for me I've got a cozy room which is used by me lots of time a day. I guess I spend much time at the room because I like to play computer games. In our districts you are able to do lots of things due to we live in the central part of the city, I think it's well for me.
Keep in touch!
Best wishes,
[your name]
Написал вариант как в ЕГЭ но без обратных вопросов и из-за неопределенных вопросов немного смазано, но думаю в школе пойдёт.