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。

I went hiking to a mountain with my friend last summer. It was a good trip in the beginning and something unexpected happened halfway. One of my friends suddenly felt a terrible pain in his stomach and he couldn’t move any far. Nobody knew how to deal it. One girl tried to call her mom over her cellphone, but there is no signal in the mountain area. Lucky, we had brought a tent with us. We put it up and let him to rest in it. After taken some pills, he drank some water and ate some food. Late, he felt much better and we walked on. We all enjoyed us on the top of the mountain.