What's Tom(doing) 为啥用doing不用doesing

What's Tom(doing) 为啥用doing不用doesing what s Tom doing?回答 what's tom doing什么意思如何回答? —Whats Tom doing?-----Hes 英语怎么写?to What is Tom's mother like?My name is Tom.My mother is a middle school teacher.She is doing housework now.What am I doing?I am doing my homework.What is Tom's mother like？ What,s.she.doing? What's Jenny doing? What's Tom doing?He___(swim)in a river with his brother. what does tom doing on sundays对吗 What's Tom's father doing?____ a,she' reading b,He's reading c,Tom is reading d.his reading.做注 what's your____(netional),tom. What's the men doing? What's you doing now? What's the boy doing? --what are they doing now?--they are () when and where to have tom's party 填空括号首字母为d what does he like doing?为什么用doing还一个题 he does his homework every day?为啥用does what is your sister doing?she's reading 我想知道为神魔不用does Tom,what's your mother's name? what's is Tom's uncle do?