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（∧），并在下面加上该加的词。
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，从第11处起不计分。
Boys and girls,
May I have your attention, please? I have anything important to tell you. Next Sunday afternoon, our class was going to hold an English story-telling competition in lecture hall. Everybody is required to take part in the activity. Two foreign teacher will be invited to act as judges. The activity will benefit from you in many ways. For example, it will give us a good chance to practicing your oral English and train your communication skills. However, it will inspire your interest at English. The requirements are as follows. First, the story can be original. That is, the story must be made up by yourself. Second, the story must be presented in English. Finally, your story should be finished within three minutes. That’s all, 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(Λ)，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。
Hello, boys and girls! Today, I am going to talk about that you should do when a fire alarm go off. If you hear the alarm, stand in line at the door and wait your teacher to lead you outside. Stay closely to your teacher and classmate. Don't panic or get out of line, and try to remain quietly and calm. Soon the firefighters will come and put out a fire. Whether it's a false alarm and there is no fire, your teacher will lead us back to the classroom. If you notice that someone is missing or hurt, tell your teacher immediate.
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。
Dear Mr Johnson,
I’m writing to tell you that I had a safety journey back to Beijing. Thanks to your kindness, I had a wonderfully time in Australia. It is my first time to go abroad and I was naturally a bit nervous when I was arrived. When I saw you at an airport, I knew from your warm smile that something would be all right. With your help, I visited so many places of interests in Australia, where impressed me a lot. I hope some day you will go to visit Beijing and I will act like a guide to show you around the city.
Yours,
Li Hua
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，每句中最多有两处错误。每处错误仅涉及一个单词的增加、删除或修改。按下列情况改正：
删除：把多余的词用斜线(\)划掉。
增加：在缺词处加一个漏字符号（A)，写出该加的词。
修改:在错的词下画一横线，写出改正后的词。
注意: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。
Bill worked in big office, and he usually went to the barber's during working hours to have his hair cut. This against the rules： office workers had to have his hair cut in their own time. While Bill was at the barber's on one day, the manager of the office entered in to have his own hair cut. Bill saw him and managed to hide his face. But the manager sat besides him, and soon recognized him. "Hello, Bill," said the manager, "I know you are having your haircut. ""Yes, sir, I do, said Bill. "You see, sir, it grows in office time. " "Not all of it，" said the manager at once. "Some grow in your own time. " "Yes, sir, that's quite true," answered Bill polite, "but I'm not having it all cut off. "
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，每句中最多有两处错误。每处错误仅涉及一个单词的增加、删除或修改。按下列情况改正：
删除：把多余的词用斜线(\)划掉。
增加：在缺词处加一个漏字符号（A)，写出该加的词。
修改:在错的词下画一横线，写出改正后的词。
注意: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。
Bill worked in big office, and he usually went to the barber's during working hours to have his hair cut. This against the rules： office workers had to have his hair cut in their own time. While Bill was at the barber's on one day, the manager of the office entered in to have his own hair cut. Bill saw him and managed to hide his face. But the manager sat besides him, and soon recognized him. "Hello, Bill," said the manager, "I know you are having your haircut. ""Yes, sir, I do, said Bill. "You see, sir, it grows in office time. " "Not all of it，" said the manager at once. "Some grow in your own time. " "Yes, sir, that's quite true," answered Bill polite, "but I'm not having it all cut off. "
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。
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 not 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.