The content of the oral test is quite different from that of CET-4 and CET-6. It's too easy to be in front of your mouth! China mainly involves politics, economy, military affairs, culture and so on.
The oral test is divided into two parts, the written test first and then the oral test! I passed the written test and four oral tests! If you fail four times, you must take the written test again!
If you attend a training class, you'd better attend New Oriental, so that you have authority! The new world is only beautiful and quite beautiful. However, everything still depends on yourself! I looked it up online for you. Changchun doesn't seem to have a training class for foreign students from China! !
Finally, I recommend a website for you. You can go and have a look. Very good.