题目内容：

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（^ )，并在其下面写出该加的词。

删除：把多余的词用斜线（\ )划掉。

修改：在错的词下划一横线（一），并在该词下面写出修改后的词。

注意：1.每处错误及修改均仅限一词；

2.只允许修改10处，多者(从第11处起)不计分。

A man got on a train and sit beside a woman. The woman was more than thirty year old. Soon they began talking to every other. He said to her, “Do you have a family？”“Yes，I have one son ” the woman replied to. “Oh, really?” said the man. “Does he smoke？”“No，”the man answered. “That’s good.” The man was glad to say, “I don’t smoke，too. Smoking is bad for your healthy. And does your son often fight with other?” “Oh, no.” the woman answered at once. “He never fights.” “Well,” the man said. “He is a good young man. But how old is he?” “Only three months old today.” The woman said with smile.