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-优题课

Most students feel like nervous before taking an important exam. Some feel dizzy or tiring, some have no appetite for food and other even suffer from sleep problems. All the symptoms have terrible effects in their exams. How can they get rid of these bad symptoms? Personal, it’s important to make a careful plan in advance to review what they have learned, what will help them reduce the pressure. Besides, they should arrange their time properly. They shouldn’t stay too late because only enough sleep makes them energetic and enable them to perform well in an exam. what’s more, a balanced diet can contribute to their perform in exams. They are supposed to eating various food such as eggs, milk, carrots, walnuts, etc.

Mr. Johnson is a hardworking teacher. Every day, he spends too much time with his work. With little sleep and hardly any break, so he works from morning till night. Hard work have made him very ill. “He has ruined his healthy. We are worried about him.” That is which other teachers say. Yesterday afternoon, I paid visit to Mr. Johnson. I was eager to see him, but outside her room I stopped. I had to calm myself down. Quietly I step into the room. I saw him lying in bed, looking at some of the picture we had taken together. I understood that he missed us just as many as we missed him.

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仅限一词；
2.只允许修改10处，多者（从第11处起）不计分。
My friend Nick told me story about his experience back in the US, which was very interested. One day he was having a yard sale and the old man living next door come by to help. As the old man looked over the things in the yard that was to be sold, he stopped at a box of golden ball for Christmas trees. On the box was a card say, “25 cents each.” “You will never sell these for that much.” he told Nick. Convinced, Nick has brought the price up to 10 cents a piece. Without a moment’s delay, my neighbor picked up the box but announced, “I’ll take them.”

Ladies and Gentlemen：
Welcomed to the West Lake. First of all, let me make a brief introduction for it .
The West Lake like a shining pearl lying in the west of Hangzhou City. Surrounded by hill on the three sides, it is famous for it beautiful scenery, a plenty of historic sites and a variety of local products. Legend has it that the West Lake was a jewel falling from heaven when geologists insist this place had been a shallow sea gulf before it became that it is today. In any case, the West Lake inspired poets and painters for centuries. Enjoy your trip. Thank you !

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 computers 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 computer 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.