题目内容：

此题要求改正所给句子中的错误。如有错误（每行只有一个错误），则按下列情况改正：

此行多一个词：把多余的词在原句中用斜线（\）划掉。

此行缺一个词：在缺词处加一漏字符号（Λ），并将所缺词写在该处。

此行错一个词：在错的词下面划一横线，并在横线下方写出改正后的词。

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 fiends we have, the more we can learn for one another, but the more pleasure we can share together.