I am so happy to write to you again. I took part in a marathon competition at the weekend, at my school. This is the first time I have participated in a sports competition and it was really amazing. I left a little nervous at the beginning because there were a lot of people cheering for us and you know, I won't the silver medal surprisedly because while I was running I didn't really pay attention to other competitors. I think, playing sports is a good habit for our health. 

Looking forward to your reply!