Writing prompt: My Favorite Sport

Student essay:
This summer holiday,i join in the football match in Chaoyang District.It's my frist improtant match in my life,I represent our school,it's my pleasure.
We have started train since the start of term.Often went back home very late and there is not enough time to review and write.Finally,we started the match.
Because my teammates was very strong,so I've been sitting on the bench.Only a few minutes.We was not in vain.We won the match until the last and finally won the championship.
This championship waschange by our sweats, so lt's very meaningful,and also very impressive.

Corrected essay:
This summer holiday, I joined the football match in Chaoyang District. It was my first important match in my life, and I represented our school. It was my pleasure. We had started training at the start of the term. I often went back home very late, and there was not enough time to review and write. Finally, we started the match.
Because my teammates were very strong, I had been sitting on the bench only for a few minutes. Our efforts were not in vain. We won the match in the end and finally won the championship.
This championship was earned by our sweat, so it was very meaningful and also very impressive.