短文改错（共10小题；每小题1分，满分10分）
文中共有10处语言错误，每句中最多两处。错误涉及一个单词的增加、删除或修改。增加：在此处加一个漏字符号（^），并在其下面写出修改的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线，并在其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。
Yesterday I bought new coat in a shop. When I came back home,I found
it so big for me . This morning , I went to the shop  and change the coat
I bought . But the sales girl in the shop treated me cold .  Firstly ,
she didn’t admit that I buy the coat in her shop . Then ,  she said  I
made it be dirty . So I got very angry but quarreled with him , pointing
to the rules on the wall。  Just then , a manager turned up . He said
sorry  to me and they changed other one for me . At last , I said goodbye
to them and took the new coat home happily .