Cambridge
B1 Preliminary for Schools (PET)
B2 First for School (FCE)
C1 Advanced (CAE)
C2 Proficiency (CPE)
Michigan
ECCE B2
ECPE C2
MSU
B1, B2, C1, C2
ESB
ΚΠγ
Β1-Β2, C1-C2
TOEIC
IELTS