Could you tell me if you have ever taken a class from Dr . Miller ?   Yes . Are you going to be taking a class from him ?   Yes , but I have never taken his class before .   He is very interesting and challenging . Is that what you are looking for ?   Yes , that's what I need .   He is really clear on what you need to learn to get a good grade . Are you willing to study hard ?   Yes , I guess so .   What I really liked about him is that he was an understanding and friendly teacher . Do you enjoy that in a teacher ?   Yes , I had a teacher like that before .   Did you know that he has 20 years teaching experience ? 