看一看这篇英语短文有什么语法错误
Children's Day
Today was Children's Day.My classmates and I were very happy.In the afternoon,we had great fun playing in the classroom.We watched
a cartoon movie,Conan.It was really interesting.And we atemuch food.It was delicious.Then Mr He played a magic for us.It was very great.I really enjoyed it.
Today I was very happy and really relax.