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 Sir ,
Thank you for invite me to the summer English courses in your school .As for your choice between the two courses , I prefer the four-week course because of it will allow me more time to do traveling and make a little new friends . Of all the subject I’m learning at school, I like English best. I had been learning English for eleven years but my spoken English is poorly .So I really hope to take this chance to improve them. .If possible, I’d like to stay with a family for a couple of days in order that I can know some customs in England, that I’m particularly interested in. I believe I will have good time this summer.
Yours truly ,
Li Hua