June and 65438+ February. According to the information about CET published by China Education Examination Network, CET is sponsored by the Ministry of Education. The written CET test time is June and 65438+February, and the oral CET test time is May and165438+1October. Candidates who sign up for the oral test must first sign up for the corresponding level. CET-4 and CET-6 are large-scale standardized tests administered by the Education Examinations Institute of the Ministry of Education (formerly the Examination Center of the Ministry of Education) and are national teaching examinations. Its purpose is to promote college English teaching in China, measure college students' English ability objectively and accurately, and provide services for improving the teaching quality of college English courses in China.