阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。
The subway train moved ___ (slow) into the city. It was filled with bored, tired passengers.
Suddenly a little boy stood up and walked in between grown-ups’ legs. While his father stayed by the door, the boy sat next to the window with a group of unfriendly people.
As the train went on moving, something unexpected happened. The little boy got up from his ___ and put his hand on my leg. For a moment, I ___ (think) that he wanted to go past me and return to his father, so I moved my leg. But _ _ of moving on, the boy came near me and kissed me softly on the cheek.
I was ___. What happened? A kid kissing an unknown grown-up on the train, is that right? To my ___, the kid went on kissing all my neighbors.
Nervous and confused, I looked questioningly at his father.
“He’s so happy to be alive,” the father said. “He’s been very sick.”
The train ___ (stop). Father and son got off and disappeared into the crowd. On my cheek I could still ___ the child’s kiss- a kiss that set me to think.
How many grown-ups go around kissing each other from the joy of being _ _ (live)? How many even give much thought to the privilege（特权）of living? How many of us will start being ___ (we)?