What's for dinner?中为什么要加be动词

What 's for dinner?是什么? What's for dinner?中为什么要加be动词 what’ s for dinner?怎么翻译啊? What's for dinner?什么意思 What is for dinner? Dad,I'm hungry.What's for dinner是什么意思 mum,i'm huangry.what's for dinner What is for dinner?是什么意思? What to eat for dinner 连词成句：1.I can some noodles have 2.what's,dinner,for 今晚有什么菜?What's _ _ _ for dinner tonight? What would you like ____ dinner tonight?为设么?答案：for 为设么? for,today,like,dinner,what,you,would ) What would you like for dinner? what did she have for dinner? What will we have for dinner tomorrow? you,what,do,eat,dinner,for _________________________________________? did what have he dinner for