阅读理解。 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 l2. 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). 1. How many people are there in the family? A. Four. B. Five. C. Six. D. Seven. 2. —How old is Bob? —He is ______. A. 21. B. 16. C. 45 D. 12. 3. Where does Tom's mother work? A. A hospital. B. A.school. C. A post office. D. A shop. 4. —Who is Jane? —She's Bob's ______. A. mother B. aunt C. grandmother D. sister 5. —How old is Gina? —She is _______. A. 21. B. 16. C. 45 D. 12.