用there be 句型写一篇英语作文(不少于6句）!

Five years ago, our school is very small. There was only one building with two floors. There were twenty teachers and seven classes. But now in our school, there are three buildings and there are 14 classes. And there is a big playround behind the classrooms, too. There are lots of trees and flowers in the school yard. Our school is beautiful now.