补全对话

A. It’s 4 miles. B. But sometimes I get to school by bike. C. How do you get to school? D. I ride my bike. E. How long does it take?

A: How do you get to school, Tom?            
B:     1    
A: How far is your home from your school?
B:     2    
A : How long does it take?
B: It takes around 10 minutes.    3     
A: I walk.      4   
B:      5_     
A: It only takes 15 minutes.