what do you often have for supper?为什么用for不用at?

what do you often have for supper?为什么用for不用at? What time do the Reads usually have supper?为什么用have,怎么不用for, What do you have for supper? 翻译：what do you have for supper? what,have,do,for,breakfast,you,often(?) what food do you have for supper?有没有语法错误 What do you have for lunch/supper?的意思 what do you often have _______lunch at school?A:for B:in C:a what do you have for lunch?i often have ___or___. What do you often have for your breakfast? What,have,do,for,breakfast,you,often(?)连词成句 what would you like to have for supper为什么选for