Сначала указывается адрес справа, например, 13 Ostozhenka street, Moscow, Russia 16/11/16
Dear ...,
I was so happy to get your letter! I can't wait to meet you in December! I'm sorry I haven't answered earlier but I was really busy with my moving in a big city. You asked me to tell you about it. Life in a big city has advantages and disadvantages. There are ... and ... . I am for living in a big city because there are a lot of people and I want to meet with them. I shall be in ... for a couple of days in December. It has been such a long time since we met. Unfortunately, I have to go now and prepare to my new school. Take care and keep in touch! Best wishes, Kristina