疑问句前面用了does 后面动词还要+s么?He writes four letters to his wife every mouth.改为疑问句.
问题描述：
疑问句前面用了does 后面动词还要+s么?
He writes four letters to his wife every mouth.
改为疑问句.
答
不用.
Does he write four letters to his wife every month?