听句子,选出该句的最佳答语。 ( )1. A. Thank you. ( )2. A. No, you can't. ( )3. A. Thank you. ( )4. A. Very delicious. ( )5. A. I learned English last year. B. Yes, I think so. B. I'll be glad to. B. Good idea. B. Very much. B. Since the year before last. C. No, I'm not. C. Good idea. C. Enjoy yourself. C. Yes, they are very good. C. I wanted to learn English last year.