Dear Jane,
Thank you for your recent letter. I'm good, and you?
This weekend was perfect. I was walking with my parents in the park. Then I was at the picnik. There we had a lot of fun. For example, we played in different games, swam in the river. I can say that I liked it so much. After that I was walking with my sister. I like to walk with her, because we can spend a great time together.
Write back soon.
Best wishes,
(Твое имя).