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。每处错误仅涉及一单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧),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。
Recently, the phenomenon of teen obesity has made a lot of parents concerning. Why are teens getting fatter and fatter?
In my opinion, there are two reasons of the problem.Firstly, because the popularity of TV and puters and students having such much homework to do, they are getting little exercise than before. Secondly, because people’s quality of life has been gotten better and better, families can afford to buy many foods, that might make the kids overweight.
In order to lose weight and stay healthy, teens should avoid spend too much time in front of the TV or the puter and do more exercise. As the saying go, “An apple a day keeps the doctor away.” They should also eat a more balanced diet such as fruits, vegetables, less fast food and junk food. Last but not the least, they should make a proper time schedule so that they can balance their exercise and studies.concerning-concerned
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(答案→)concerning-concerned
解析：文章介绍年轻人肥胖的问题，因为对电视电脑的流行，和学生作业太多，他们比以前锻炼时间少了。
【小题1】年轻人肥胖的问题使父母担心。形容词：“关心的，担心的”，concerned
【小题2】这个问题有两个原因。The reason for“…的原因”。
【小题3】因为对电视电脑的流行，和学生作业太多，他们比以前锻炼时间少了。Because of后面接名词或动名词
【小题4】学生有这么多的作业要做。So修饰much homework
【小题5】他们比以前锻炼时间少了。应该用比较级little—less
【小题6】人们的生活质量越来越好。people’s quality of life 和get是主动关系，去掉been
【小题7】人们的生活质量越来越好，家人能买得起很多食物，这可能是使得孩子超重。这是非限制性定语从句，不能用that，用which引导
【小题8】为了减肥，年轻人应该减少在电视机前面的时间。Avoid 后面接动名词：spend—spending
【小题9】考查主谓一致：主语是the saying，谓语是单数：go—goes
【小题10】Last but not least,是固定词组“最后但是同样重要的是：去掉the