canxingliu

Teacher: Kevin, why are you late this time?
      Kevin: Please sir, I bruised two fingers knocking in a nail at home.
      Teacher: I don't see any bandages.
      Kevin: Oh, they weren't my fingers! I told my little sister to hold the nail
凯文，你怎么迟到了
老师，我在家里钉钉子的时候弄伤了手指
我没见到你手上有绷带啊
哦，受伤的不是我的手指，是我叫我妹妹扶住钉子的