Did you < >a bike before 为什么不要用过去试,

Did you < >a bike before 为什么不要用过去试, did you go home?为什么did用过去时,go 为什么不用过去时态? Did you bought a bike.改错 改错 为什么 过去做某事 用 what did you do Did you father buy you a new bike 同意句 Did you go to school ( ) bike 填 ride 为什么? what a nice bike!where did you buy it -Did you tell a white lie to anyone before?-________________ Did you ____ a bike to school when you were a girl How long did you study before you qualified.为什么不是have you st You must have your bike ----before I come for it.A.repaired Your brother starts out 10 minutes before you on a bike path