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。

Nowadays many people drive instead of taking a bus or walking to work. It causes more traffic jam and accidents. As the student, what can we do to guarantee our safe? First of all, the traffic rules must be strict obeyed. When we cross streets, wait until the traffic light turn green. Next, don't forget walk on the pavement. Finally, I think it very dangerously to wear headphones while walking or cycling. Since we can't pay enough attention on the traffic around us, so accidents may happen. Taking good care of ourselves and don't let our parents worry about us.