短文改错（共10小题；每小题1分，满分10分）
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）不记分。
Dear Brown,
Last summer I take a part-time job in the International Camp for children. I have told one more worker will be needed in this year and I think you are fit for it. How about join us? The camp is at the foot of a small hill closed to a river. It is such beautiful a place! We can hear birds singing happy all around. Everybody sleeps in tents, that is very exciting. We usually work only five hours a day, so we will have plenty of spare time visit the area and have fun. I am sure it will be an unforgettable experience. If you have interests in it, reply to me soon.
Yours,
Mary