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I'm Jim. I have a big family. This is my father. He is very fat. But he was thin when(当. . . 时候) he was young. He is a doctor. This is my mother. She is beautiful. She is a teacher. Her hair is short. Her hair was long five years ago(五年前). This is my grandpa. He was a farmer. But he is old now. And this is my grandma. She is old too. She was a nurse when she was young. I was very naughty then. But now I am a very nice pupil.