根据短文内容，用恰当的反身代词填空。

    Yesterday my sister Tonia and I went to the shop to buy some ice-cream. On the way home, Tonia fell down and hurt (she) and I cut (I) on some broken glass (玻璃). When we got home, my friend Tony was taking photos for (he). My brother and his friends were enjoying (they) playing in the garden (花园). My brother said to me, "Look at (you)", and he began to laugh. I couldn't know why. So I looked at (I) in the mirror. But he laughed more loudly. Finally I knew why. It was just a joke.