增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。
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。
Our class paid a visit to a senior's home last Sunday.As soon as we got to there,we first did a thorough cleaning. Some swept and mopping the floor.Some cleaned the windows or others did some washing.An hour late,the rooms looked clean and tidy and took on a newly look.Then we were divided into two group.One group gave a wonderful performance who the elderly enjoyed very much;the other group taught those interested in English some daily expressions.All the elderly had good time with them.When lunch time came,we had to say goodbye for them.
