三、完形填空（本大题满分10分，每空1分）

阅读下面的短文，从短文后各题所给的A、B、C、D四个选项中，选出一个可以填入空白处的最佳选项。

It was the early autumn of my first year at a school, and my old school was far away. _______ (41) a result, no one knew who I was. I felt very lonely, and_______(42) to make friends with anyone.

Every time I _______(43) the other students talking and laughing, I felt my heart broken. I couldn't talk with anyone about my problems. And I didn't want my parents to_______(44) about me.

Then one day, my_______(45) talked happily with their friends, but I sat at my desk unhappily as usual. At that moment, a boy entered the classroom. I didn't know who he was. He ______(46) me and then turned back. He looked at me, and smiled.

It made me feel happy, lively and warm. That smile_______(47) my life. I started to talk with other students and made friends day by day, I became_______(48) to everyone in my class.

The boy with lucky smile has become my best friend now.

One day I asked him why he smiled，but he couldn't remember_______(49) at me!

It doesn't matter because all the dark days have gone. I believe that the world is _______ (50) you think it is. If you think it lonely, you might always be alone. So smile at the world and it will smile back.

(   )41. A. So    B. As    C. If    D. But

(   )42. A. able    B. have    C. begin    D. afraid

(   )43. A. heard    B. listened    C. sounded    D. looked

(   )44. A. worry    B. talk    C. think    D. know

(   )45. A. teachers    B. friends    C. parents    D. classmates

(   )46. A. pointed    B. passed    C. stopped    D. knocked

(   )47. A. gave    B. broke    C. changed    D. started

(   )48. A. closer    B. farther    C. happier    D. better

(   )49. A. looking    B. laughing    C. smiling    D. expecting

(   )50. A. what    B. where    C. which    D. when