Since you work in the human resources department, let me tell you two things.
1, go to the audition first and choose another teacher. If you think that teacher is not good, listen to the next class and then choose the next teacher. They usually have several teachers.
2。 Be sure to listen to cross talk before the exam. Since 2007, the textbooks have been updated, and the ability to grasp questions is not as accurate as before 2007, but at least 40 points will be mentioned in cross talk.
good luck