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。
I was always busy with my studies and seldom helped my parents with houseworks. Feeling quite sorry for that, and I began to think about how to do to help them. Last Sunday, when my parents went out shopping, I suddenly got idea: why not give the rooms a thoroughly cleaning? First, I collected all the books, newspapers and another things in the rooms and then put it in place. After that, I sweep the floors. At this very moment, my parents came back and were quite surprising to see all the rooms tidy. My mother gave me a hug and I could see satisfaction in his eyes.
