What did you do 后是加on sunday还是sunday?是加on sunday morning 还是加

What did you do 后是加on sunday还是sunday?是加on sunday morning 还是加 What do you do on Sunday morning? next Sunday morning 还是on next Sunday morning 需要加介词on吗 是on Sunday morning还是in Sunday morning? 是on the sunday morning还是in the sunday moring 是in Sunday还是on sunday in sunday morning 对 还是 on sunday morning对? on Sunday morning还是in Sunday morning?为什么? what did you do last sunday morning? What do you do on Sunday morning?的回答是什么 what do you usully do on sunday morning?咋答呢? what did you do on sunday .what else