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