A: Come in ,come in ,what can I do for you ?
B: Professor Donald,are you giving your advanced geology course again next semester?
A: Yes ,I am applying on it .
B: I wonder if I could enroll in it.I know it is a graduate course and I 'm a junior,but ....
A: Aren't you a bit young?I have a lot of qualified seniors to take the course and they usually have a hard time keeping up .
B: I know,but geology of the American west is my major interest and I have done a large reading in the field.
A: Well ,if you think you are ready,I'll let you enroll.
B: Oh ,thanks ,professor Donald.this is very nice of you.