This pro, of course, can take time off without deducting class hours. This is more humane. If you don't attend many training courses, you won't attend them, and you won't postpone them for you. In addition, what makes me more gratified is that the DaDa (Dada English) class must be Da, which means that as long as an appointment is made, there must be a teacher to give the class. I won't keep you waiting for nothing.