听句子,选择正确的答语。 ( )1.A. That's nothing. ( )2.A. I'm sorry to hear that. ( )3.A. Thank you. ( )4.A. OK. See you next time. ( )5.A. No, I-m very busy. B. It doesn't matter. B. Is it true? B. Don't say that. B. You can do it now. B. Yes, Why? C. lt was a pleasure. C. Oh, poor boy. C. No, it's not clean at all. C. Do it yourself. C. What about you?