完形填空。 There was a boy who was the brightest student in his class. But the boy changed l  _ leaving home and living in the school. His grades started dropping and felt worried. He 2_ being with others.He was 3 all the time because he felt that no one loved him. His parents 4 worrying about him. But they did not know what was happening to him. _5 his dad decided to go to the school and talk with him. They sat on the bank of the lake near the 6 . His dad asked, 'Do you know why I am here today?' The boy answered back, 'To check my grades?' 'No, no,' his dad _7 , 'I am here to tell you that you are the most important person for us. We want to see you happy. I don't care about 8 .I care about your happiness.  YOU ARE OUR LIFF,. ' These words caused the boy's eyes to fill with tears. He hugged his dad. He knew there was __ 9_ who cared for him deeply. Today this young man is in Peking University and he is the 10 of his class. (     )1. A. before (     )2. A. enjoyed (     )3. A. lonely (     )4. A. stopped (     )5. A. So (     )6. A. home (     )7. A. shouted (     )8. A. health (     )9. A. someone (     )10. A. weakest B. when B. hated B. lovely B. started B. Because B: college B. replied B. sports B. nobody B. best C. after C. kept C. lively C. liked C. But C. school C. asked C. grades C. anyone C. tallest D. while D. liked D. alone D. was D. And D. supermarket D. cried D. happiness D. everyone D. saddest