一道英语选择题,为什么这么选(过程)谢谢!

问题描述:

一道英语选择题,为什么这么选(过程)谢谢!
John usually ____ his homework after dinner.
A.does
B .is doing
C.does
D.do

A.does
John 为第三个称用does
usually 总是,用一般式