1. (2018·绥化) 从方框中选择合适答语（其中有一项是多余的）

A. Sure. B. No, thanks. C. Fine, thanks. D. He's my brother. E. Good idea. F. Geography.

1. （1） Who's the boy? 
3. （2） Could you please take out rubbish? 
5. （3） How are you? 
7. （4） What's your favorite subject? 
9. （5） Let's go for a walk.