阅读理解。 Dear Mike, Thanks for your family photo. This is a photo of my family. I have a happy family. There are five people in my family. They are my grandmother, my parents, my sister and I. The old woman is my grandmother. The man is my father. His name is David. He is a teacher. And what about the woman? She is my mother. Her name is Linda. She is very nice. Look at the girl. That's my sister. She is in a middle school (中学). Her name is Lucy. Do you know (知道) the boy? It's me. Yours, Tony 1. There are ______ people in this family. A. four B. five C. six D. seven 2. Who is Linda? A. She is the boy's aunt. B. She is the boy's sister. C. She is the boy's mother. D. She is the boy's cousin 3. Is David the old woman's son? A. Yes, he is. B. No, he isn't. C. No, he is. D. No, it is. 4. What's the name of the boy? A. Tony. B. Mike. C. David. D. Linda. 5. Which is true (正确的) according to (根据) the letter? A. The parents have two sons. B. Lucy is a student. C. Lucy's mother is a teacher. D. David has no grandmother.