假如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.每处错及修改均仅限一词；
2.只允许修改10处，多则（从第11处起）不计分。
Friendship is very importance. Everyone needs friendship. In all your lives we can’t live without friendship just as we can’t live without air and water. Friendship makes us getting on well with one another to go ahead under different kind of difficulties in front of us. But real friendship was not easy to come by. True friendship must be sincere and be based on understanding each other but not on benefits of each other. A good of friend can always be a good teacher to us. By his advices we are persuading to go the right way. However, the more friends we have, better we can improve ourselves.