LanguageCert Level 2 Certificate in ESOL International (Listening, Reading) (LanguageCert Test of English C1) 603/5300/4A LanguageCert Test of English certificate holder at C1 level can understand an extended speech even when it is not clearly structured, understand television programmes and films without too much effort and understand long and complex factual and literary texts or specialised articles and technical instructions relevant to various fields. For more information please refer to the Common European Framework of Reference (CEFR).