假定英语课上老师要求同桌中间交换修改作文，请你修改你同桌写的以下便条。便条中共有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：在缺词处加个漏词符号（∧），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. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者（从第11处起）不计分。
Dear Sir,
Last year I bought the refrigerator in your store on Hong Qi Street. We all like the shape of the refrigerator. Recently I have found anything is wrong with it. It begins to make a noise when it turned on. At first it is low but gradual it becomes louder and louder. To make matter worse, it even stopped working sometimes. We all feel disappointing. I am writing to you to ask for help. Would you please send a person to repair? I will at home this weekend. Please call me until you come here. My telephone number is 66065531. Thanks you very much.
Li Ming