How many kids are in your family? Do you have a brother? Do you have a sister? Let's look at the survey results (調(diào)查結(jié)果) of how many kids are in a family.
One- child (孩子) family 4
Two- child family 5
Three- child family 2
Now many families have two or three children (孩子們). Mary is in a two- child family. She has (有) a sister. They have fun together.
I am in a- child family. My family members (成員) are and me.