As we all know, the teacher or the meeting leader is the person that impart knowledge or information to us. They may say something wrong and make mistakes during this process, what should we do? In my opinion, the beat way is to talk to the teacher or meeting leader until the class or meeting are over and the people are gone. There are several reasons to follow this idea. To begin with, interrupting the person who is taeching or saying is not polite. For example, in our school, each class has 45 minutes. The teacher stands in the front of the classroom and keep teaching and resolve our doubts, sometimes write key points on the blackboard. It is a tired task for anyone to keep speaking during 45 minutes, so I think as students, we should show our res