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。
删除：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；
3. 错误类型不涉及单词拼写。

As we all know, everyone has a dream. I had dreamed of being a doctor since I entered into the primary school. Nowadays with modern life going rapid, many people suffer from different kind of diseases, both mentally or physically. As a result, doctors are in great need at home and abroad. My dream is to become the successful doctor, help to save people's lives. Although to be a good doctor is very difficult, I will do whatever I can keep everyone healthy. To make my dream come true, I have told me over and over again that I’ll concentrate more on studies. After all, only by work hard can one succeed.