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只限一词；
2．只允许修改10处，多者（从第11处起）不计分。
Last weekend, our class went to Guangming Nursing Home and do some voluntary work. Upon our arrive, we were warmly welcomed by the elderly people. At first, we presented them to flowers and fruits. Then, we started working at once, cleaning the windows or sweeping the floor. Everything done, we sat in the yard chat with the elderly people. When it was time for us to leave, the elderly people thanked us for their kindness. They said it was so a beautiful day that they would remember it forever.
Tiring as we were. we thought it was meaningful and unforgettable experience. What we did brought joy to others and enriched our own lives as well as.
