请阅读下列短文。根据短文内容从下面方框的七个选项中，选择五个适当的句子还原到原文中，使短文意思通顺、结构完整，并将其答案填写到答题卷的相应位置。(每小题2分)
Sixteen year ago a boy gave me an important gift. 1.       
It was the early autumn of my first year at a middle school, and my old school was far away. As a result, no one knew who I was. I was very lonely, and afraid to make friends with anyone.
Every time I heard the other students talking and laughing, I felt my heart break. 2.     
Then one day, my classmates talked happily with their friends, but I sat at my desk unhappily as usual. At that moment, a boy entered the classroom. 3.      He passed me and then turned back. He looked at me, with a smile.
Suddenly, I felt the touch (触动) of something bright and friendly. It made me feel happy, lively and warm. 4.      I started to talk with other students and made friends. Day by day, I became closer to everyone in my class. The boy with the lucky smile has become my best friend now.
One day I asked him why he smiled, but he couldn’t remember smiling at me!
It doesn’t matter because all the dark days have gone. 5.      If you think it lonely, you might always be alone. So smile at world and it will smile back.

A. It’s his friendship. B. I believe that the world is what you think it is. C. I didn’t know who he was. D. That smile changed my life. E. I couldn’t talk with anyone about my problems. F. It was a smile. G. He helped me to talk with other friends.