when did your father buy you the mobile phone 换为被动语态 when（ ）the mobile phone when（ ）you?

题目

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

答案

when did you be bought for by your father the mobile phone?
when did the mobile phone be bought by your father for you?