增加：在缺词处加一个漏字符号（Λ），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 Saturday, my friends and me went to climb the West Mountain. While climb, we enjoyed the sunny weather and a beautiful view. We were very delighted reach the top without much time or effort. Therefore, we found it more difficult to go down, so we went slowly but helped each other when necessary. Though I took care a lot, unfortunately I slip and hurt my leg badly. As the result, I could hardly stand up. One of my friend came to me immediately and carried me on the back till we reached for the foot of the mountain. I was very thankful and felt proudly of having such good friends.
