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（从第十一处起）不计分。

    You may have returned the book late to the library before. It is normal to pay a small fine, but how many would you have to pay if the book was returned 65 years late ?

    This is a problem what John R. Rogers High School in Washington, US had to deal with recently. A copy of Gone With the Wind that was 65 years overdue was finally returned back to its library. However, the school said on December 2nd that it would not charge late fees of the book, which would have added up about $475 (2941 yuan).

    The long-overdue book is checked out of the library of the high school in 1949, and seemed to disappearing until it was found in Maine, US, by Wayne Hachey. He found the book in his father's basement and then offered to send it back to the school. “We are delightful to have the book back, but we wonder how it has been,” Lori Wyborney, principal of the school, said.

增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。

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。

    Many students love to travel and explore the world.Become an international exchange student is a great way to do this.We can live in another country,take classes in a second language,or visit incredible tourist attractions.This is a great way learn about cross-cultural values.It is also a wonderful way to learn a new language.And most international exchange students can get help by a language tutor.Unless you can't travel,you can always think about hosting an international exchange student.When you host an exchange student,you share your home and your life with this person.Most of exchange students live with a host family for six months or one year.In beginning,there is usually a language barrier,and later, you will be able to speak together more easy.

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 Joy.

    How are you doing? Here is an exciting news for you. There will be an invention competition in our school in the 20th of October. However, there is a rule the participants shall be in a group. But I'd like to invite you to be my partners.

    I know that you have been longed to design a tiny cooler that people can wear around the wrist. I think it will be a wonderfully idea for the competition. We can make a small air conditioner to controlling the temperature of the wearer.

    How do you think of my suggestion? Looking forward to you reply.

Yours,

Zhang Xin

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。

    Jim arrived in home and discovered that he has forgotten his door key. He rang the bell, but nobody came to open the door. He rang again and waiting, but still there was not reply. He walked round the house to see if he could find the open window, but they were all locked. It was beginning to rain, he did not know how to do. Kate, his wife, had obvious gone out. He didn't know where she had gone or when she would return. Finally, picked up a stone, he threw them at the kitchen window. Just then, his wife came back.