What year were you born 与Which year were you born 的区别?那用which的时候需要加上in吗

what class were you in last year? （5）.______ year were you born?A.When B.What C.Where D.What time “What year were you born?这个怎么用 what 请问 what year were you born in?有in _____ were you born?---I was born in 1997.A.What time B.What year C.How old D.When year _____ year were you born I was born in 1989.A)When B)What C)Where_____ year were you born I was born in 1989.A)WhenB)WhatC)Where What year were you born?为什么这个句子的you为啥不是your? Could you tell me ______ during Earth Hour on Mar.31st this year?A.where were you B.what you aB.what you are doing C.who you stayed with what year were you born?的回答格式.能带个完整的回答最好. What year were you born 与Which year were you born 的区别?那用which的时候需要加上in吗 I didn't understand ________________A.what did you say B.what you were talking aboutC.what you were talking D.what were you talking about What were you thinking? what were you thinking. What were you thinking? What were you like? What You Were 歌词 What were you do? what were you doing?