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：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 daughter and I was at a mall. I noticed a man asking the saleswomen in one of the store if they had seen his "baby boy". The poor man was worrying-nobody was helping him. I suggested my daughter that we should try our best to find her. The man disappeared into the crowd but we started looking. It cost 10 minutes for my daughter to see the little boy was very calm walking around. Then we had to wait for the father. We just stayed that we were and the father saw us finally. He was so much grateful and the little boy was so happy to see his father!