请修改下面的短文。短文中共有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：在错的词下面画一横线，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。
Like many other places, our hometown is either facing the problem of pollution. Unfortunately, people there have realized the importance of protection the natural environment. Factories have been taken measures to stop pouring polluted
water into the rivers. The citizens no longer put waste, such as rubbish or human waste into the rivers. Every year,a great number trees are planted. As a result,
the water in the rivers are becoming cleaner and cleaner.The hills around the city were covered with green trees and the air there is much more fresher than before.
Dear Susan,
I'm very gladly to hear you are coming to visit me the next Friday. Unfortunate, I won't be able to meet you at the airport although I have classes in the afternoon. You won't find difficult to get to the city center. The airport bus leaves every 30 minute and will take you rightly to the Friendship Hotel. My classes will be over by then or I will pick you up there. I will take you to a hot pot restaurant for dinner and we'll talk with our plan for the weekend over dinner. Having a pleasant trip and see you Friday.
Yours,
Zhang Ming
假定英主事课上老师要求同桌之间交换修改作文，请您修改你同桌写的以下作文。文中共有10处语文错误，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：把多余的词用斜钱（\）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．只充许修改10处，多者（从第11处起）不计分。
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.
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：在缺词处加一个漏字符号（
），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（从第11处起）不计分。
Today I was having a PE lesson while I fell down and hurted my foot．I was in great pain at that moment but I tried to act as if nothing happened until the class was over． Though I had difficulty walk back to my classroom, but I still didn't tell anyone and even refused the offer of help from my classmates． As the result, the hurt on my foot became worse．Now I know I am wrong．we can tell other our need for help and accept their help．someday we can help him in return．In this way, we can get along with each other happily and peacefully．
假如英语课上老师要求你修改你同桌写的一篇作文，文中共有10处语言错误，请在错误的地方增加、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 still remember my middle school life in that small town. I am then in a school for students from Tibet. As we all left home at a early age, we met lots of problems in our daily life. We had to do the washing, cleaning and shopping by us. However, we seldom felt lonely or helplessly. We enjoyed our happy life. At weekends, we would play basketball, swam in the pool or go for a picnic. We are lived in a big family. We treated each other brothers and sisters. If any one of us had any difficulty with his studies, the other student would help him out. It has been five years when we graduated, but those memories are as sweet as never before.