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，每句中最多有两赴，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（八），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。
I'm writing to tell you about a heat discussion among us students in our school about why students of Senior 3 should take physical exercise.
55% of the students think that we should take physical exercise each day, such as doing morning exercises, playing table tennis and basketball, etc. It can build our body, keep me healthy and reduce illnesses. Meanwhile, it can make us complete relaxed for a better learning effect.
However, 45% of the students are against that. They complained that taking physical exercise is waste of time. It can make us tired or feel too excited for further learning. More over, we may get hurt during the play. I personally think that proper physical exercise is necessary and never too hard.
下列短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号（∧）,并在其下面写出该加的词。
删除：把多余的词用划线（\）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、每句不超过两个错误；
2、每处错误及其修改均仅限一词；
3、只允许修改10处，多者（从第11处起）不计分。
The Yangtze River has been serious polluted. Everyday millions of tons of waste water is being poured down to it fromthousandss of factories along its sides. The waste water is harmful, as a result of that, there is no fish in it and the water cannot be drank. People ineither bank have to dig wells to take drinking water. The Yangtze is so dirty and poisonous that people don’t dare to swimin.Something must be done to stopping the pollution. Now special attention has paid to thepollution by the government and more scientists. The pollutionwill surely be prevented in the near future.
下面短文中有10处语言错误。请在有错误的地方增加，删除或修改某个单词。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的单词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在其下面写出该加的单词。
注意：
每句错误不超过两个。
每处错误及其修改均仅限一词。
只允许修改10处，多者（从第11处起）不计分。
Time fly like an arrow. I'm already in the second half of Senior Grade 3 before I realized it. It is only a little more than three months before I graduate middle school. At the present，I'm busy review my lessons in order to take the College Entrance Examination. I hope to go to Beijing University，that is one of the best universities not only in China but also in the world. I'll try my best turn my dream to reality. Most of my classmates are also studying very hard to realize our wishes. I do believe everyone will be able to enter an university or college.
短文改错
A survey basing on 1,000 students found that 80% of senior students sleep less than nine hours every night. One main reason lies at students’ bad habits.
Too much homework is given by school teachers is another main cause. Some students are absent-minded while doing their homework, and some wasting their after-class time.
The third cause is that some students have to get up earlier on weekday to get to school that far away from home. Experts think the amount of homework for the students should cut down. Beside, teachers should encourage their students make good use of their spare time. Only in this way can the students improve our study efficiency.
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一篇作文。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，并在该词下面写出改正后的词。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。
There are advantage for students to work while studying at school. One of them was that they can earn money. In the most part，students working to earn money for their own use. Earning their own money allow them to spend on anything as if they please. They would have to ask their parents for money or for permission to do things by the money. Some students may also to save up for our college or future use.