Look at this photo. This is a photo of my family. There are five people in it, my father, my mother, my two sisters and I. My brother is Bob: He is 21 years old. My two sisters are twins (双胞胎). They are l6.One of them is Gina, and the other is Jane. I am 12. My name is Tom Brown. My father is a doctor (医生). He likes his work. He is 45. My mother is a teacher. She is in No.6 Middle School. My parents work (工作) hard (努力). We study very hard, too. We are very happy.(幸福).
—He is ______.
—She's Bob's ______.
—She is _______.