CET-6 or above in China. Sany Oral Test is a national English proficiency test issued by the Ministry of Education of China, which is divided into five grades: Level 1, Level 2, Level 3, Level 4 and Level 5. Among them, Band 5 is the highest level, which examines the advanced oral application ability. According to the official introduction, the CET-5 requires candidates to use English fluently, accurately and naturally for oral expression, and to master the knowledge and skills of English pronunciation, intonation, pronunciation and intonation, grammar, vocabulary, listening, speaking, communication and cultural background.