What ( ) you ( ) (talk) about?I am talking

What ( ) you ( ) (talk) about?I am talking Do you know what i am talking about Do you know what i am talking about? that is what i am talking about. What are you talking about?为什么talk加ing I talking about you I am talking with you about the answer 、 中学英语语法问题I am not sure what is he talking about.I am not sure what are you talking about I am pieasure!what about you? I AM COMING WHAT ABOUT YOU? what are you talking （）?A talk show.A.about B.