假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏词符号(/\)，并在其下面写上该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
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11处起)不计分。
3 必须按答题要求做题，否则不计分。
Last winter vacation, some of my classmates decide to travel with their friends, while I chose to take a part-time job to gain experiences and earn some money. I learned from my teacher that a nearby company was looking after students with good handwriting to write addresses on envelope. The pay were 10 cents per envelope. I headed for the company, feel sure I would easy finish 300 envelops in five hours and to earn the money. Actually, I only finished 200. Now, I fully understand how hard is to earn money. Getting out of the classroom is indeed necessary for we all.