听录音,补全对话(每空一词),(听三遍) A: What day is it today? B: It's ______. A: We have no lessons ______. Can we go and play ______? B: ______, I have to go to the hospital to see my uncle. A: What's the matter? Does he have a ______? B: No. He has a ______. A: I'm sorry to hear that. What about Sunday? B: OK. ____________ then.