Among them, I think the best teacher is Mr. Tan. He lectures meticulously, and the class is packed. Students from other classes often come to rub classes. Personally recommend Mr. Tan ... As for the two teachers you mentioned, I haven't listened to their classes, I don't understand them, and I don't comment. You can ask a senior. As for the "pervert" you said, I don't know what you mean, so I won't answer. ...
I wish you a happy day, the holiday is coming, and I hope you can do well in the exam!