I don't know about other institutions. In our ordinary class, after the students finish the class, the teacher tells us what to say and gives us the information. Because time is limited, the teacher can't explain the problems of individual students. But there is plenty of time in the agreement class, and the teacher will stare at you and dig up your various problems and faults. Until the teacher can't find your problem, after all, you can't pass the exam and the institution has no money.