1. 给下列句子选择合适的答语

A. Yes, I'd love to. B. My grandpa took them long ago. C. Yes, she does. D. He is watching TV. E. No, he isn't.

1. （1） What is he doing?
3. （2） Do you want to swim?
5. （3） Is he cleaning the blackboard?
7. （4） Who took these pictures?
9. （5） Does your sister like eating fast food?