Dear John,
Thank you for you later. I hope you're doing fine. In your letter you've asked me about my best friend.
Well, I want you to tell you about my best friend. He is a very good guy. I like him because he always helps me when I need help. We became friends in the first grade. I think we are goof friends because we never argue with each other.
I must go now, my mum asked me to help her. Hope you'll answer me soon.
Yours,
(твое имя)
