Two factors might distract me when I decide to stay focused on one thing. No.1, it has got something to do with public noise I can say. When I am trying to pay attention to something that is important to me. I would be totally disturbed in general. I couldn't stay focused on one thing at a time, especially when I heard about public noise. No.2, it must be my roommate usually，I am not kidding. I have a nauty roomate, he is a kind of person who usually likes to talk a lot. I wouldn't say I could be staying focused on one thing at a time when he is around me.