下面短文中共有10处错误，错误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
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 .