题目内容：

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限一词。

2. 只允许修改10处，多者（从第11处起）不计分。

Yesterday evening I went out for a walk without my parents in a nearby park after a long day of study.

There were many people especially women dancing with music happily and energetically. Suddenly, no music was heard. It seemed what their equipment didn’t work. A young man came up into the crowd and offered to examine them. However, all the efforts he made seem in vain. People began to get a little impatience with it. Just at the moment a little boy had noticed the electrical socket(插座) was disconnected. After the unexpecting accident, people enjoyed themselves once again. Seen this, my parents and I smiled in relief. What nice evening！