1. 为下列句子选择合适的答语。

A. OK. B. Yes, they are. C. They are on the fridge. D. It's near the door. E. No, he isn't.

1. （1） Where is the bed?       
3. （2） Where are the keys?       
5. （3） Is he in the living room?       
7. （4） Are they on the table?       
9. （5） Open the door, please.