I'll make an evaluation first. This is free. This teacher is still responsible. Because it is a small class, everyone can take care of it a little more, that is, take us to practice again and again. I still have a lot of questions, mainly because I am nervous when facing people. Anyway, the teacher patiently guided me to answer in the right direction. This is my personal feeling. If you are preparing for an interview in the near future, you can consult.