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短文。短文中共有10处错误，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：在缺词处加一个漏字符号(∧), 并在此符号下面写出该加的词。

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。

At present we are living in a good age. Therefore, there are still a small number of people who don't act responsible. His bad behaviors are out of place in our civilizing society. For an example, some people often risk their lives to disobey traffic rules. Littering is still a serious problem. Some people are often seen to spit in public places. Bad still, it is common to find silly things writing by some tourists in scenic spots.

To my opinion, everyone should learn to become a responsible citizen. We must aware that everything we do in public places will affect others and we should break our bad habits. As long as we obey the rule in every field and are filled with care and love, our world will become better.