英语课上,老师要求同桌同学相互修改作文。假设以下短文为你同桌所写，请你对其进行修改。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：在缺词处加一个漏词符号∧，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：在错词下面划一横线，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处不计分。
How an unbelievable scene! A modern young couple were eating fruit in public and had thrown a plenty of waste on the ground. When an old cleaner came to clean up, the man was very angry. He points at the cleaner, saying in a loud voice,” How impolite ! They haven’t finished eating ! ” “How could people behave such badly ?” I thought. Obvious, in their eyes, they could do all that they liked and ignore other’s feelings. In my opinion, we should pay attention our behavior, obey public rules and respect other people’s work. We should know that civilized people are those who has good manners but a beautiful mind all the time.