题目内容：

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。

修改： 在错的词下画一横线， 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。

I have many friends, and Lily is one of the best. We have been playing together before we were young. She is such pretty girl that when people meet him, they always say, “Oh, how lovely”. Lily is also very brave. One evening two weeks ago, my mum sent me to buy some salt or sugar downstair. When I was back on the stairway, I sudden saw a black shadow behind me. I was frightening and cried. On that very moment, Lily came. She rushed to the shadow and shouts loudly until it disappeared. Then we ran to home safely.