1.One possible version:
Hello,my name is liu xiaoguang.I'm 14 years old.I study at No.1 Middle School.There are three people in my family.They are my father ,my mother and me.I like playing basketball,I like Xiao Ming very much.
2.One possible version:
They are Li Qiang,Sam and Mary.Li Qiang is in Class3.He's a Chinese boy.He's thirteen and his phone number is 84591082.Sam is in Class1.
We are in the same class.He's from England.He's eleven and his phone
number is 83214667.mary is a girl.She is in Class4 and she is from
America.She is only ten and her phone number is 87673221.We are all
good friends.
3.One possible version:
This is my classroom.There are fifty students in it,twenty—one boys
and twenty—nine girls.There is a big desk and fifty—one small desks.On the wall,there are two blackboards and four pictures.Every
student has got a pencil box and a book.They are on the desks.And twenty erasers are on the desks,too.My classroom is bright and nice.
I like it very much.