短文改错（共10小题；每小题1分，满分10分）
下面短文中共有10处语言错误，每句中最多有两处错误。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。
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 buy a refrigerator in your store on Chang An road. We all like shape of the refrigerator. And recently I find something is wrong with it. It begins to make noise when it was turned on. At first it is low but gradual it become louder and louder. To make the matter bad, it even stops working sometimes. We all feel disappointing. I am writing to ask for help. Would you please send a person to repair it? I will stay at home this weekend. Please call me before you come to here. My telephone number is 66065531. Thanks you very much.
Customer
Li Ming