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。
People always say that us lack the eyes of realizing the beauty in life. I can't agree completely. I woke up very early and decided to take a walk on last Friday. In the square where much senior citizens were dancing, I find several elders absorbed in feeding birds. Without many cars producing smog on the street, I realized that the city was such clean and beautiful. Some coffee shops decorated pretty well, which used to be old but out of style. On all sides of the street were big trees covering the whole city, making it comfortable to walk in the city. At that moment, I found a city was so interesting. How I regret ignore its beauty before!
