阅读短文，判断句子正(T)误(F)。
Hello, I have a happy family. There are five people in my family. My grandparents are very old. They like walking in the park. My father is a doctor. He has a big head. I call him ”big head dad”. My mother is a nurse. She is beautiful. I am a student in Grade Three. I love my family.
（ ）1. There are four people in my family.
（ ）2. My father has a small head.
（ ）3. My mother is a doctor.
（ ）4. My grandpa likes walking.
（ ）5. I’m a student in Grade 3.
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