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There was an American boy in our class before. His name is Tom. He was short and thin at that time. He came to China with his parents(父母). He liked Chinese, so we taught(教) him Chinese, and he taught us English. We had a good time then.

Last year, Tom's parents took him back to America. We couldn't see him. Yesterday, I got a letter from him and a picture of him. He is taller now than before, and he is so fat!