You know?
　　
　　When i ask something,and you answered: i do not know.
　　
　　That was really bad feeling.
　　
　　What is you do not know?
　　
　　I want to know if you have thought then gave me the answer.
　　
　　I really feel confused when i heard : i do not know,i do not know.
　　
　　
　　.....................