完形填空。 The train shook back and forth, its wheels a loud noise. Outside the windows the freezing cold of winter ruled. The train was filled with cold, tired passengers. Suddenly a little boy 1 his way through the grown-up's legs and sat down by the window. He was all alone among the unfriendly grown-ups. What a brave child, I thought. His father 2 to stay by the door behind us. The train began to move slowly into a tunnel (隧道). Then something very 3 happened suddenly. The serious little boy slid (滑) down from the seat and leaned (斜靠)his hand on my knee. For a moment, I thought that he wanted to 4 me and returned to his father, so I helped him to stand up. But instead he leaned forward and held his head 5 towards mine. He wanted to say something to me, I thought.1 lowered my head to receive the 6 . Wrong again! What I received was a loud kiss on the face. The boy quietly retumed to his seat, leaned back and continued looking out of the window. I was so surprised. What just happened? A child kissed an 7 grown-up on the train. How could anybody want to kiss such a man that had so much beard (胡子)? Nervous and a little surprised, we smiled at the father. 8 he saw our questioning looks as he got ready for his stop, he offered a clue (some information). 'He's so happy to be alive,' the father said, 'He has been very sick.'Father and son 9 into the crowd moving toward the exit. Then doors closed and the train went on. On my face I could still 10 the child's kiss a kiss that has started some soul-search (深思) inside me. How many grown-ups go around kissing each other 11 the joy of being alive? How many even give much thought to the special right of 12 ? The little kisser has taught us a sweet but serious lesson-You don't let yourself die before your heart stops! (     )1. A. lost (     )2. A. preferred (     )3. A. interesting (     )4. A. kiss (     )5. A. up (     )6. A. news (     )7. A. unsafe (     )8. A. Before (     )9. A. disappeared (     )10. A. touch (     )11. A.  in (     )12. A.  hope B. moved B. chose B. strange B. beat B. on B. idea B. unimportant B. When B. ran       . B. smell B. about B. kiss C. fought C. agreed C. funny C. pass C. back C. message C. unfamiliar C. Unless C. looked C. have C. for C. death D. pushed D. hoped D. exciting D. ask D. out D. thought D. unfriendly D. Since D. came D. feel D. after D. life