what's David doing?——He is b with his homework.后面加什么?

what's David doing?——He is b with his homework.后面加什么? What does David like doing after -What's David's dog doing?-（ ）is singing.A.She B.He C.It.要理由 What,s.she.doing? What's Jenny doing? what are David and Mary doing?---They__(have dinner) what s Tom doing?回答 What's the men doing? What's you doing now? What's the boy doing? David's What s()are your father is feet ,David? What's she 还有 what ari you doing?what are they doing?what's he doing?都帮忙翻译下 What's Tom(doing) 为啥用doing不用doesing Craig David 1.Hands Up In The Air2What's Changed的歌词要翻译Craig David What's Changed what's she doing for vacation?中文 What`s your mother doing now? What’s she doing?的同意句