###INSTRUCTION: Fix grammaticality in this sentence: Dear sirs I are writing following you after response to your advertisement across my favourite magazine, to let you know how I been intersted in this great adventures you are setting up and that I would liking very much to be one by the successuful student you were looking for! . Firstly, I are convinced around all my skill gained within my short but busy student life will were real assets for your team: not only have I an important knowlegde except invironmental problem that I acquired during my studis (as I am holders of an environmental master), but I had already the opportunities to do some temporary activities last summer for the famous Environmental French Agency, where I was in charge of a studies but wild lives against Antarctic! . However, I has never had yet the opportunity to gone on site to did some practical experimentations.
###RESPONSE: 
Dear Sir I'm writing to you in response to your advertisement in my favourite magazine, to let you know how interested I am in this great adventure you are setting up and that I would like very much to be one of the successful students you are looking for! Firstly, I am convinced that all my skills gained in my short but busy student life will be real assets for your team: not only do I have important knowledge about environmental problems that I acquired during my studies (as I am the holder of an environmental Master's), but I have already had the opportunity to do some temporary activities last summer for the famous French Environmental Agency, where I was in charge of a study of wildlife in the Antarctic! However, I have never yet had the opportunity to go on site to do some practical experimentation.
Dear Sir, I am writing following you after response to your advertisement across my favorite magazine, to let you know how I was interested in this great adventures you are setting up and that I would like to be one by the successful student you were looking for!