A: Hello! B: Hi! A: This is my Dad. This is my Mom. Mom, Dad, he is my friend. B: How do you do. Mom, Dad: How do you do. A: Mom, Dad, my friend's mother is a doctor. Mom: Oh, your mom is a doctor, what about your Dad? B: He is a doctor, too. Dad: Doctors are busy. Are they busy, too? B: Yes, they are. Mom: How are they? B: They are very well, thank you.
