帮我检查一下初一英语作文有没有错误

帮我检查一下初一英语作文有没有错误
My family
My name is Lucy.I am a Chinese girl.I am 12 years old.I am a student in Grade 7.I have a round face,big eyes and small mouth.I have long black hair.I have a happy family.
My parents are both business.They work in the clothing store.My father has a big nose and short black hair.My mother has small nose and ears.
I have a sister,Mary,is 7 years old.She is in grade 3.She has short biack hair.She is very nice.My grandparents live with us.
we ear happy family.
有错误的话,请指出
也可以删去一些句子,要求是50词左右.