The subway train moved back and forth, its wheels producing more loud sounds than ever against the tracks. Outside the window was just the  21  cold of winter. The carriage was filled with frozen self-centered, bored  22 .
Suddenly a little boy  23  his way in between grown-up legs.  24  his father stayed by the door, the boy sat next to the window, surrounded by  25 , half-awake adults. What a brave child, I thought. As the train entered a tunnel (隧洞), something totally  26  happened. The little boy slid down from his seat and put his  27  on my knee. For a moment, I thought that he wanted to go  28  me and returned to his father, so I moved a bit. But instead of moving on, the boy held his  29  up towards me. He wanted to tell me something, I thought. I  30   to listen to what he had to say. Wrong  31 ! He kissed me softly on the cheek.