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．只改10处，多者（从第11处起）不计分。
I was taking a train to London's Victoria Station. I had noticed that the carriage was noise and filled with people.
Before long, a train inspector comes to check out tickets. A passenger realized he couldn't find his ticket but became quite upset. Then everyone in the carriage began searching the ticket, which was eventually found under a seat several rows from his owner. The person who found a ticket smiled with pleasure at his success.
No one in the carriage had previous spoken to or even noticed the ticket-owner before. Yet, they had so quickly offered the strangers their help. If we could show concern to others on need, the world would be a better place to live in.