IELTS (International English Language Testing System) is a standard English language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language language
L'esame di IELTS (International English Language Testing System) è una prova standard accettata di padronanza della lingua inglese da parte di madrelingua non madrelingua in oltre 9.000 organizzazioni di oltre 140 paesi.