1 . 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 officer,

I am writing to extend my sincerely gratitude to you. Since the middle of August, there have been frequent mountain fires in Chongqing, caused great damage. However, the rescue work is not easy due to the uncertain of the wind.

Fortunately, you come to our rescue immediately. Professional rescue teams, armed police, fire fighting and others rescue forces spared no efforts to put off the fire. What touched me most was that the volunteers joined in the rescue work regardless of the hot weather and burning ground. That occurred to me that but for your help, Chongqing could have returned to normal so soon.

Your commitment really means a lot of to us, and I do hope to have the opportunity to repay your selfish devotion.