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．
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．
It was in a mountain area where I went hiking with my friends last summer. It was the good trip in the beginning but something unexpecting happened later. One of my friend suddenly felt a terrible pain in his stomach and he couldn't move any farther. Nobody knew how to deal it. One girl tried to call her mom, and there was no signal in the mountain area. Worried about him, we put up a tent that we brought with and let him to rest in it. After taking some pills, he drink some water and ate some food. Fortunate, he felt much better and we walked on. We all enjoyed us on the top of the mountain.
