给下列的问句选择合适的答语。 (     ) 1. What colour is it? (     ) 2. What's her name? (     ) 3. Let's clean the desks. (     ) 4. Are they on the table? (     ) 5. What would you like? (     ) 6. What's your mother? (     ) 7. Who's that woman? (     ) 8. Where are the keys? (     ) 9. Can I help you? (     ) 10. Is he a doctor? (     ) 11. What can you see in the picture? (     ) 12. What's in it? (     ) 13. Who is that man? (     ) 14. What's for dinner? (     ) 15. How many people are there in your family? A. They are in the door. B. She is my aunt. C. It's yellow. D. Yes, please. E. Her name is Sarah. F. All right. G. No, he isn't. H. She is a teacher. I. Yes, they are. J. I'd like some fish. K. Four. L. He is my father. M. Two birds. N. Rice and vegetables. O. Some pens.