classes: lecturer. Dear teacher, I am completely satisfied with the quality of your lessons and the knowledge you bring is really useful and rich. curriculum. Dear teacher, I am completely satisfied with the quality of your lessons and the knowledge you bring is really useful and rich. facility. Dear teacher, I am completely satisfied with the quality of your lessons and the knowledge you bring is really useful and rich. general. Dear teacher, I am completely satisfied with the quality of your lessons and the knowledge you bring is really useful and rich.