????? ??????????

???? ?????? ??????????? ?????? ??? ????????? ?? ????? ?????? ??????, ??????? ?????? ??????? ?????????? ? ???????????? ? ??????????, ??????????? ? ?????????? ????. ???? ?????????????? ????????? ???? ????????? ?? ????????, ????? ?????????? ??????? ?????? ? ????????? ??????????????? ??????. 

????? ISE ???????? ??????? ??????? ??? ?? ???? ????????? ???????? ???????: 
1. Beginners (??????????)
2. Elementary (???????????? ??????? ??????)
3. Pre-Intermediate (?????? ??????? ???????) 
4. Intermediate (??????? ???????) 
5. Upper Intermediate (??????? ??????? ???????) 
6. Advanced (???????????)
7. Proficiency / Upper Advanced (?????????)