增加：在缺词处加一个漏字符号（A），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。
Health is most important for any of us. In order to stay health, we need to know some common knowledge.
Firstly, we should eat lots of fruit and vegetable because they are rich in fiber and low in fat. When a proverb says, "An apple a day keeps the doctor away." Secondly, exercise is necessary. Regular exercise can keep ourselves from getting fat. People do running every day usually have strongest hearts than those who don't. Final, form good living habits. We should sleep for about 8 hours every day. Overwork and little sleep will lead to ill. What's more, stay away cigarettes.
These are the things we should pay an attention to so as to keep fit.
