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:在错的词下划一横线，并在该词下面写出修改后的词。
注意丄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, Li Mei goes to a store to return a shirt without carrying the receipt(收据）.When she got there，she refused. The salesman said that he wouldn’t take it back if she showed him the receipt Thinking it was no way out，Li Mei put the shirt back in her bag and left Suddenly two shop guard stopped her and began to search for her. They found the shirt in the bag and looked at it careful  Many eyes were staring at her, what made Li Mei very embarrassing. Luckily, a salesman came up in time and she was allowed to go.