题目内容：

短文改错

假定英语课上英语老师要求同桌之间互相修改作文，请你修改你同桌的以下作文。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。

删除：把多余的词用斜线(\) 划掉。

增加：在缺词处加一个漏字符号(∧) ，并在该词下面写出该加的词。

修改：在错的词下划一横线，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11 处起) 不计分。

Believe it or not, many of the biggest change in how English is spoken have come from common people in the streets. And one of the most important places which English has changed is the playground! These playgrounds can be any place where the young people meet, such like a sports field or a beach. Often words using by black kids in big cities become popular for other kids many years later. On the beaches of southern California, teenagers invented words to describe what they felt when they surfed. These words found its way into the high schools and then to other places. Similar changes happen among young people in Ireland and Australia. Children from one group would find ways to play with another group more easily. Often they made new words just develop an identity different from their parents.