There is no requirement for CET-4 and CET-6, as long as you pass their English. Of course, there are certain requirements for English when interviewing. I heard it's still quite high. However, if you are serious when you are an undergraduate, it will be easy. If you want a better job, I suggest you take the postgraduate entrance examination. After three years of study, you will really feel the difference in experience, knowledge and life. He who suffers hardships is a master.