what do you have for breakfast这里为什么要用for 请老师们简单讲一下for的用法

What do you have for lunch What do you have for supper? what do you have for lunch what do you have for lunch on what do you have for ants?翻译 What do you have for b___? 翻译：what do you have for supper? What do you have for lunch? what do you usually have for breakfast What do you have for b_____? What do you have for a______? What do you usually have for lunch? what,have,do,for,breakfast,you,often(?) what do you have for lunch/答语 What do you usually have for Thanksgiving? what do you usually have for meals? What do you have for dinner?病句吗可以说成what for dinner have do you? what do you have for summer?I have swimming.