用方框中所给单词的适当形式填空,使短文意思完整正确.（每个单词限用一次.每空限填一个单词.）

beautiful have our are year

My name is Lily.These years,our school has many changes（变化）.Six（1）______ ago,our school was small.The playground was small,too.There（2）______ no computers.We couldn\’t see flowers or grass in our school at that time.But now,you can see（3）______ flowers and green trees everywhere.Look!That is （4）______ new library.There are lots of books in it.And the playground becomes big now.We often （5）______ PE classes on the playground.I love our school.