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

  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.       

1. shoe → shoes  2.去掉to  3. And  → But

4. understand that  → understand what  5. worrying  →  worried

6. decided   后加 to ;   7. with  → in

8. want  →  wanted  9.he→she   10.happily→happy