从选择正确的答语，填在括号里。

（1）Is Sandy waiting downstairs?       
（2）What time do you have breakfast?   
（3）Can I come in?                 
（4）What is she doing?               
（5）How do you go to school?         
（6）Where are you from?             
（7）Why don’t you ride a bike?         
（8）Who’s in the bathroom?         
（9）Are you American?               
（10）How was your day?