请问What were you talking about?和What are you talking about?有何区别?

请问：What talk you about? what were you doing和whar you were doing的区别书上有what were you dong也有what you were doing,请问区别是什么 请问 what year were you born in?有in what are you talk about WHAT ARE YOU TALK 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? What were you dream? if you were told you were a princess,what would you dosorry，没说清哈，这是老师给的一个问题，让我们回答，做个小talk! 请问What were you talking about?和What are you talking about?有何区别? 请问,It is essential to know what you can talk about with different people. what were you thinking,译文 What were you thinking of