Here’s a possible completion of the text:

My **mother** is 48 years old. Her name's Helen. My **father** is 50 and his name's Bob. My **parents** are both teachers and they’re friendly and nice. I have a **daughter**. Her name is Anna and she’s a student. My **brother**, Fred, is a lawyer. He’s married and his wife’s name is Cara. They have two **children**: a son and a **daughter**.