were did you go on vacation 为什么用go?

were did you go on vacation 为什么用go? where did you go on vacation 为什么加on where did you go on vacation是什么意思 where did you go on vacation 作文 Where did you go on vacation? Where did you go on vacation Where did you go on vacation同义句 21.Where ________ did you go on vacation? Where did you go on vacation 为题的英语作文 where did you go on vacation什么意思? 英语作业本2where did you go on vacation Where did you go on your vacation?是什么意思?