假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误仅涉及一个单词的增加、删除或修改。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(\)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。
Aproverb says, “Time is money.” But in my opinions, time is even much valuablethan money. Why? Because when money is spent, we can earn them back, so whentime is wasted, we can never get it back. There is no doubt when time is verylimiting, and even an hour is of great value. We should make full use of timedo useful things. It's a pity that a lot of people didn't appreciate the valueof time. They waste their time doing anything useful. We should form the goodhabit of racing against the time.
