增加：在缺词处加一个漏词符号(∧)，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：在错的词下画一横线，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。
This morning, when I was walking in the street, I saw two traveler were reading a map, looked puzzled. It seemed that we were lost. I went up them and asked how I could help. They told me that they were looking for the Temple of Heaven. I lead them to a nearby bus stop and advised them to take Bus No. 20, that could take them there directly. They appreciated my help great. Before long, the bus pulled out. They got on a bus and waved goodbye to me. Seeing them on the bus, and I felt a kind of satisfaction.
