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。每处错误涉及一个单词的增加、删除或修改。
     增加：请在有问题的地方画横线，并在下面写出正确的改法。

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。

One day , little Tony went to a shopping center with his parent. It was very crowded. Tony saw a toy on a shop window. He liked it so very much that he quickly walked into the shop. After looks at the toy for some time, he turned around and found where his parents were missing. Tony was scared and begun to cry. A woman saw him drying and telling him to wait outside a shop. Five minutes later, Tony saw parents. Mom said,“How nice to see you again! Dad and I were terrible worried. ” Tony promised her that this would never happen again.

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