____you often(eat)lunch at school?____you often______(eat)lunch at school?为什么不用eating?

问题描述:

____you often(eat)lunch at school?
____you often______(eat)lunch at school?
为什么不用eating?

do

Do you often eat lunch at school ?
一般疑问句 后面you是第二人称,所以用Do

因为句子中 eat 是动词,所以要用助动词do

因为有EAT在后面 动词