短文改错。下面短文中共有10处错误，请找出并修正。(注意：在原文中标示出错误)

John finished his middle school half a year before and then he worked as a postman in his small town．As he is afraid of dog, he often had a lot of troubles．One afternoon he tried take a postcard to a big house by bike．When he reached the house and got off from his bike at the gate, at once a large dog came run at him with much noise．John quickly threw the card through the gate．To his much surprise, the dog didn't make any noise．It ran fast to the card, picked it up with its mouth, carried it towards the house．John thought for a while and said to him,“T dog is a better postman than I am．”

1．________　2．________　3．________　4．________　5．________

6．________　7．________　8．________　9．________　10．________

短文改错

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．每处错误及其修改仅限一词；

2．只允许修改10处，多者(从第11处起)不计分。

Dear Mr．Black,

　　I'm very thank to you for inviting me to stay with you in the come summer vacation．I have been dreamed of seeing you again so that I can get more help from you in my English learning．And I'm afraid I cannot go to your place in this summer．I've promised my

grandmother, she lives in the country, to spend this summer with her．She misses me too much that I find difficult to refuse her request．I'm busy with preparing for my examinations at present．I planned to visit you in winter if it's convenient to you．

　　Best wishes,

Yours truly,

Li Ying