Is to take the exam during school. But non-German majors can apply for the exam, because I am not a German major, and the exam is the same. General schools are registered. You can ask the counselor.

Personally, I think that the big grammar can almost pass CET-4, which is quite simple ~ the vocabulary and grammar level are not high. If you learn to travel all over Germany, you will certainly have no problem with your hearing. This set of books has high requirements for listening, but the teaching structure of grammar is rather scattered. I wonder how your grammar and vocabulary are now?

I suggest you buy real questions to do. Feel it.