11．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．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）每处错误及其修改仅限一词． （2）只允许修改10处，多者（从第11处起）不计分． All of us need friendship．An understanding between two friends mean both of them have similar ideas and trusting each other．Otherwise，it is impossible for him to help each other and to make their friendship to last long．As an old saying goes，"A friend in need is a friend indeed．"So really friendship should able to stand all sorts of tests．And it is wise to have as many good friends that we can．The more friends we have，the more we can learn for one another，but the more pleasure we can share together．
