Therefore, if new college students want to take CET-4, they can theoretically just catch up with the registration time of CET-4 when they enter school in September, so it is reasonable to have the opportunity to sign up for the exam. But in fact, college students usually miss CET-4 because they have to deal with many things and even take part in military training after entering school.
Of course, you can register for the exam in March next year, but in the past two years, due to the epidemic, many schools have frequently postponed organizing students to take the CET-4 exam, so at present, the CET-4 registration of universities is either suspended or full (I have experienced it personally).
Generally speaking, there are still many opportunities to take the CET-4 and CET-6 in four years. If you are determined to pass CET-4, you should pay more attention to the relevant information released by the school and adjust your life and study arrangements in time. I hope you can seize the opportunity and pass the exam as soon as possible.