He always does his homework at eight.(always划线,提问） 请帮我解答,而且说明为什么要这么做.
问题描述：
He always does his homework at eight.(always划线,提问）
请帮我解答,而且说明为什么要这么做.
答
How often does he do his homework at eight?
因为always表示频率,所以用how often 提问.does作为助动词,do 作为行为动词,所以这样说.