A、In bamboo chairs. B、On bamboo mats. C、On the floor. D、On knees. B

W: Hi, Mike. I wonder if you have time to go with me to the cinema this Sunday.
M: Oh, I planned to finish my term paper that day, but Yamada invited me to a tea ceremony at his home.
W: Really? You’re lucky! The tea ceremony is a special form of entertainment for distinguished guests.
M: Yes, the tradition of tea ceremony has existed for about six hundred years. But, to be frank, I know little about those special and strict rules of the ceremony.
W: It’s not as hard as you imagine. I happened to have been invited to one tea ceremony once. I think I can give you some suggestions.
M: Oh, that’s good.
W: Remember, no matter what kind of tea ceremony you attend, they have one thing in common, that is, guests are invited to enjoy a moment of peace and calm.
M: Do you mean that the atmosphere is more important than the cakes and the tea itself?
W: Yes. And don’t forget to wash your hands in a rock water basin before entering the tea-room.
M: It sounds interesting. Is there a special room for a tea ceremony?
W: Of course. The room is very simple but very beautiful. The host and the guests will all sit on a kind of bamboo mats named ‘tatami’.
M: I know. I’m practicing to sit on my knees on the floor these days. My knees ached a lot.
W: But I’m sure the tea ceremony will release your pain and make you feel happy and peaceful.