Hello, I'm an English major at Jiangnan University. According to my experience, if you haven't received any English education since junior high school, your current English level can't reach Band 4. But if you study in some slightly more formal schools, such as New Oriental, you can make up for it. I believe you are determined.

Also, according to the English test results of other freshmen majoring in Jiangnan University that I know, their level should be good, but most of them have just arrived at the second level of English, and few of them can go to the third level. Therefore, it is impossible to reach the second and third grades of English only in junior high school. At least if you graduate from high school, if you learn well, then there is no problem with CET-3.

If you want to take CET-4, I suggest you go to some professional training institutions and consult professional teachers first. It is estimated that they will take the CET-4 and CET-6 at the beginning of school and prescribe the right medicine. It's better this way. After all, concrete analysis of specific problems is extremely important.

As for the corresponding time of CET-4, these are available online, and the teacher will remind you at the corresponding time. After all, you won't waste money if you are fully prepared to take the exam again, and you will be comfortable if you pass the exam, right? O(∩_∩)O~

English learning is really important, and it is also very beneficial for finding a job in the future. I hope you can pass CET-4 as soon as possible.

I also hope my suggestion can help you a little, thank you.