下面短文中共有8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8处，多者 (从第9处起) 不计分。

例如：It was very nice to get your invitation to spend ∧ weekend with you. the                                  Luckily I was completely free then, so I’ll to say “yes”. I’ll arrive in Bristol at am around 8 p.m. in Friday evening. on

Dear John，
Last summer I take a part-time job in the International Camp for children. I have been told one more worker will be needed this year and I think you are fit it. How about join us? The camp is at the foot of a small hill close to a river. It is so a beautiful place! We can hear birds singing happy all around. Everybody sleeps in tents, which is very exciting. They usually work only five hour a day, so we will have plenty of spare time to visit the area and have a fun, I am sure it will be an unforgettable experience. If you are interested in it, reply to me soon.