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。
While taking a walk with my pet dog this morning, I found the middle-aged man nearby was shouting on his phone. Obvious, he had a bad day. Before he left, I noticed his keys were on the ground. So I immediately picked up and ran away to find the man. Several minutes later, I found him, whom was still shouting on his phone beside his car. I walked to him and asked if he could hold on a little seconds. At first, he was angry about my interrupt. Then I showed to his keys and explained the whole thing. On heard my words, he immediately hang up his phone and apologized for his rudeness.
