答案：Do you go to school on foot?
Does he go to work by bike?
（这两句都要用助动词）
Do you go to school on foot?
Does he go to work by bike?
does he go to work by bike?
do you go to school on foot?
Does he go to work on foot?
Where are you going ?
What are you going to do?
Can you get there at 6:00?
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