Sorry, that was a really ignorant suggestion I made - never considered that you might actually be using Polish software!
You were right - this letter was better - except for that faculty sentence I could imagine it coming from one of my neighbors.
I don't mind commenting on your practice letters, but if you want feedback from some other readers, maybe you should start a new thread. That might give someone else a chance to give you some opinions. Did you say you planned to take the exam soon?
Dear Sir/Madame, [write out Sir or Madam - they may use Madame in England, I'm not sure]
Referring to your advertisement in The Flock Guardian, published on [the] 7th of April I would like to apply for
a position as a turist [sp]guide at your tour company.
I am 21
-years-old[year old] polish [capitalize]exchange student of[in] Faculty[the School] of Turism[sp] on[at] Flock University. [ Is this what you meant? you could also say you were a member of the faculty at Flock University, but this would mean you were a professor] This year I will finish my
third year of study and during my summer brake[sp] I would like to start a part time job
in[with] your company.
Being employed at your company is very important for me because I would not only be able to gain some
experience in the filed[sp] of turism[sp] but
also[this is OK, but it sounds better if you put also after could] I could [also] earn money for my further education.
I can asure[sp] you that I am one of the best
of thecandidates for that[this] position. If you take my education
into consideration you will come to the conclusion that in a short time I will fit in [don't know if this
is formal or rather infomal] to turist guide responsibilities [try "in a short time I will master my tourist guide responsibilities"]. I have exelent[sp] personal skills and I work
perfectly[I don't think anyone could work "perfectly" - maybe superbly, excellently, something like that ] as a team member as well.
If you need more information do not hesitate to contact me.
I look forward to hear form[sp] you,[period]