假定英语课上老师要求同桌之间交换修改作文，请你修改你同学写的以下作文。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。
Every one of us can make a great efforts to cut off the use of energy in our country. To begin with, all of us can start reducing to the use of oil by driving only when we have a real need. That won't be easy ,I know, but we have to start anywhere. What's more, we can go to work by bike once and twice a week, and we can also buy smaller cars that burn more oil. Other way is to watch our everyday use of water and electric at home. For example, how many times have you walked out of a room and leave the lights or television when no one else was there?