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，每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限一词。
2．只允许修改10处，多者（从第11处起）不计分。
Dear Tony,
Thank you for your letter. To tell you the truth, I’ve thought a lot of about whether you
should buy a laptop computer help you with your study. In my opinion, you’d better not. For
one reason, it’s very easy for you to develop some bad habit once you have it, such as playing
computer games, see movies and so on, which will be a waste of time. For other reason, buying a
laptop computer don’t mean you can study well. If you want to make a progress, you need to put
your heart into your study but work hard. Whether you had a computer or not is not the most
important. Do you agree to me? Looking forward to your reply!
Li Hua