At first we must explain what exactly 'mean' IS “lingua franca”, because this is not obvious for 'everybody' (ja uzylabym everyone). “Lingua franca” is a kind of language, which 'is using' (ale co?-) ALLOWS 'to make' (niepotr) communication between people who 'are' DO not 'sharing' SHARE a “mother tongue”. 'It' THIS is especially important when two 'of' (po co to 'of'tutaj?) people who need to communicate 'using' NEED TO USE a third language,' what is mean' (co to jest? WHICH 'that' (niepotr) is not THE language OF any of 'this' (this-l. poj, THESE-l. mnoga, people-l. mnopga) two people (mozna po prostu THEM-ich). To say that English is (przedimek) “lingua franca” we must analyze when we 'are' (niepotr) 'using' USE English (if we 'are using' (USE IT) and how many of us do this.
In schoolS (bo jest ich wiecej jak jedna na swiecie) around the world children must learn (przedimek) foreign language, even in Poland or (przedimek) Congo. (czy jestes przekonana zw w Congo mowia po angielsku?) If (przedimek) country doesn’t 'using' (dlaczego uzywasz tego slowo 'using' jak caly czas masz na mysli USE) English as a mother-TONGUE language, then children must learn English. Of course it is not forbidden to 'get to know' LEARN other languages 'like' SUCH AS Russian or French, but 'in the most' MOST of (przedimek) 'occurrence' CASES English is 'anyways' Niepotr ale i tak ortog) the 'best' BETTER known 'from' THAN any other languages.
.....We can speak for example in German, but never as good as in English. ...(tego calkowicie nie masz na mysli, przekaz nam co wlasciwie masz na mysli)
English is the most known 'languages' (dlaczego dalas l.mnoga tutaj?) also because of (ale czyjej? jezyka czy swiatowej?) history.
English people colonized most of the world, (nie za bardzo prawda, bo inni tez probowali) .
It is enough to look at Australia 'of' (zle slowo) (przedimek) USA – all of people there are speaking 'in' (niepotr) English. (NIe, w Australii inne jezyki tez sa, a US prawie polowa-jak nie wiecej uzywa inne jezyki) - tutaj robisz takie generalizacje, jak tak chcesz napisac, to musisz to inaczej.
The same is when we think about 'commercial' (ale CO? commercial co?)
When we want to buy something in ANother country and we don’t know the mother tongue OF this country, we are using English and this 'is' (niepotr) always 'giving' GIVES 'a' (niepotr) good results.
English is 'using' USED - dlaczego nie rozpoznajesz czesci mowy i uzywasz niewlasciwych?) even in diplomatic 'appointmentS.' (ja bym dala tutaj slowo 'circles') Of course, there is always a 'translator' (zle slowo), but it is 'well-seen' (nie za bardzo pasuje, poszukaj co odpowiada) when (przedimek President or (przedimek) Prime minister know English. It is so sad, that 'our authority' (to znaczy kto? policjant, drogowy, kucharz, no kto?) in Poland 'didn’t' ARE NOT able to match this 'challenge' (nie, bo wczesniej o zadnych 'challenge' nie pisalas).
I think that I clearly described why English is “lingua franca”- nie wg mnie to nie clearly.
'At the end I want to add only, that' ADDITIONALLY I think that this is never going to change and English will be “lingua franca” forever (a masz takie przekonanie dlatego ze jestes najlepsza wrozka na swiecie, na czym to bazujesz, na ilosci ludzi dla ktorych to jest 'poslugivany' jezyk, czy na przekonaniu ze GB i USA zawsze beda na topie?. Sa inne jezyki ktore juz opanowuja wiekszasc ludzi.