我的姐姐（my sister）
    i have a pretty sister.she is twenty years old.her name is zengjie.she likes reading. so she is very clever.her favourite sport is swimming.i sometimes swim with her. 
    she is a friendly girl,because she always be friendly to everyone.she is also my little teacher.she always helps me to do my homework. 
    i like my sister.i must learn from her.