在2016年里约奥运会羽毛球男单半决赛中，李宗伟以2：1险胜林丹，赛后两人交换球衣，深情拥抱。李宗伟说：“我想感谢林丹----我最伟大的对手！”这告诉我们（    ）

    I'm Peter. There are four people in my family. They are my father, my mother, my grandfather and me. I'm twelve. My birthday is on 15th March. My parents are both doctors. They help people. Their birthdays are both in May. My grandfather is old. He is sixty-five. His birthday is on 9th June. He likes reading. I like reading too. I want to be a teacher in the future. I want to teach Chinese in a school.