此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右
边横线上画一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：
此行多一词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线（\）划掉。
此行缺一个词：在缺词处加一个漏字符号（∧）, 在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
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 where 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 he did made people angry. 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.