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。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号(∧)，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，并在该词下面写出修改的词。

注意：1. 每处错误及其修改均仅限一词；

2. 只允许修改 10 处，多者(从第 11 处起)不计分。

Plogging, that is a new way to exercise, is becoming popular with runner worldwide. Many of them are posting photos of themselves and friends hold bags of litter on social media. A Swedish man called Erik start the movement. He became terrible worried about the amount of litter on the road but decided not to go to work by bike any more. Instead, he began to run to work and pick them up at the same time. To his happy, more and more people joined in him and soon plogging became popular. Many people choose plogging because they think plogging not just benefits earth; it is also a good way to exercise.