what happened to your car 为什么不用did

what happened to your car 为什么不用did what happened to your memory?和 what's happened to your car?在 “What did your boss say to him?”中did可不可以去掉、say为什么不用said What did your boss say to him 中为什么不用do而用did? what happened about the cinema为什么用about不用 to What happened to your cat? ( )What did you do with your car? What happened to this car?--Translate to Mandarin -What happened to your brother yesterday mourning? what s happened to your love 歌词 —what happened to your shoes? what happened 为什么不可以用 what did happen