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一下作文。文中共有10处语言错误，每句最多有两处。每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（∧），并在该词下面写出该加的词。
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
Friends are very importance to teenagers. They gave fun and excitement to each other. They also give advices to one another. They can talk about lots of problems with their friends. As for parents, they are sure important. But some teenagers often says their parents don’t understand them. In large families, brothers and sisters often argue each other for good things, such as delicious food or super toys. Because most teenagers think friends are the most important people in their lives. It is very important for teenagers to have one friend and group of friends. As for the reason, it is may be because we can discuss some private things with their friends.