听句子,选择恰当的答语。 ( )1. A. Yes, of course not. ( )2. A. 18 yuan. ( )3. A. Yes, it is. ( )4. A. Monday. ( )5. A. What a pity. ( )6. A. I went to Guilin. B. Yes, please. B. For three days. B. Yes, it was. B. Friday. B. Good luck. B. I have been to Guilin. C. Yes, here you are. C. At three. C. Yes, I am. C. Saturday. C. Bad luck. C. I have gone to Guilin.