短文改错（共10小题;每小题1分，满分10分）

My brother Tom was very selfish when he was a little boy. He did not want share things with other people. For example, when he bought a chocolate cake, he put them in a secret place I couldn’t find. Then he ate it all by himself. He never helped other. He said he is busy. That is, a game of tennis making him very busy. He did not care if something what he did made people anger. For instance, on one night he played strong and loudly music till four o’clock in the morning. But he is difference now. He often helps grandma with housework, helps mom with cooking and helps his classmates with their lessons.

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