kto umie angielski i ma chęć zrobić to zadanie

odpowiedz na pytania: 1) How do people start and finish emails in your language? Is it formal or informal? 2) Are there different parts of your country that use different words to mean the same thing? Can you give an example and explain it in English? 3) Are there abbreviations on the internet in your langugage like LOL or BRB? :O