Напиши адрес в правом верхнем углу(город, страна(краткий)). Не знаю на какую тему, поэтому напишу на любую, тут не указано))
Dear friend(имя или без),
Hello, I will tell you about my last birthday. That party was in my house. I invited my mother, dad, brother, best friend Archy, grandmother, my classmates Tim and Sam. After party my parents went to home with my grandmother. My classmates, brother and I went to shop. We bought there juice, much more sweets and cake. We liked to watch TV, therefore we to start watched our favorite serial Riverdale. My friends went to home for 23 o'clock. After I go to sleep. It was my birthday party. And are you going to your party?
Your friend
23.10.18.