When did you buy your mobile phone改为被动语态

what did you buy When did you buy your mobile phone改为被动语态 What did you buy last where did you buy that? did you buy anything?翻译! When did you leave? When did you coneback? Did you buy anying special when you ___ in Hong Kong,Tina?A.are B.were when did your father buy you the mobile phone 换为被动语态 when（ ）the mobile phone when（ ）you?when （ ）you 是隔开的,要两句 24.Jack,could you tall me__?Sure.In the post office on Green Road.A.where you bought the stamps B.where did you buy the stamps C.when you bought the stamps D.when did you buy the stamps I ___a new dictionary - when did you ___ it -just now (buy) when did you come back? when did you have it when did you go last when did you sleep last when did you go last When did you go to When did you [ ] a meeting?