我是一棵树(i‘m a tree)
    i‘m a tree, i‘m usually in green.but in autumn and winter,i am ofen in yellow.
    i live in front of a small house.there‘s an old grandma in the house.sh‘s very kind.when ifeel thirsty, she would water me in time,and i‘m growing taller and taller now.
    when summer comes,i bing her cool winds,i think she would be very happy then.
    i can do many things for people.so i‘m very happy.