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。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(＼)划掉。
修改：在错的词下画一横线，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。
Last weekend, my mother and I went to a shoe shop to buy a pair of new shoe for me. When we got to there, I saw a foreign lady talking to a salesgirl. And the salesgirl didn’t understand that the foreigner was saying. They looked very worrying. So I decided help them. I went up to the foreign lady and talked to her with English. I learned that the lady came from Australia and want to buy a pair of running shoes. I told this to the salesgirl. The lady was very glad when he took the shoes. Both of them expressed their thanks to me. And I felt very happily that I could help others.