A、A guest and a receptionist. B、A passenger and an air hostess. C、A customer and a shop assistant. D、A guest and a waitress. B

M: Your son seems to have made much progress in playing the piano. Does he attend any piano classes?
W: Yes, he takes lessons twice a week, but from next week on, he will go to the class on Saturday evenings too.
Q: How often will the woman’s son have piano lessons from next week on?

M: Sorry to trouble you. But is there any possibility of borrowing a blanket. I feel cold.
W: I think we’ ye got one. Could you wait until after take - off please?
Q: What is the probably relationship between the two speakers?