1 . 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后的词。

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。

Breaking traffic rules and littering are common in these days, caused serious harm to life and the environment. Changing this situation required everyone's effort. As for me, I'll keep traffic law in mind all the way to school. If I ride the bicycle, I'll always keep to the right and never cross a road when the traffic light turns green. If I walk, I'll never forget to use the pedestrian crossing. However, I'll regard that as my duty to help keep our environment clean. Not only I keep from littering and spitting anywhere, I'll also help clean up the roadside litter whenever possibly.