Whitecloud: I come from China. I'm also a middle school student like Ding. When I read the news, my heart ached. What Ding did made me sad. Ding should feel really sorry for that. As a student, it's very important to care about what we do in public. For example, we'd better keep our voice down. I will be more polite to people around me and take better care of public things. And I'm sure we Chinese will show our best to the whole world!