给下列的问句选择合适的答语。 ( ) 1. Good morning, children. ( ) 2. Is your seat near the door? ( ) 3. Who's this girl? ( ) 4. Let's sweep the floor. ( ) 5. How old is your father? A. She's my friend, Lisa. B. No, it's near the window. C. Good morning. Miss Li. D. 38. E. OK.