根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
When I was 16 years old，a boy gave me an important gift. 【小题1】
It was the early autumn of my first year at a junior high school, and my old school was very far away. 【小题2】 I was very lonely, and afraid to make friends with anyone.
Every time I heard the other students talking and laughing, I felt very heart broken. I couldn’t talk with anyone about my problems. And I didn’t want my parents to worry about me.
Then the other day, my classmates talked happily with their friends ,but I sat at my desk unhappily as usual. 【小题3】 I didn’t know who he was. He passed me and then turned back. He looked at me, with a smile on his face.
Suddenly, I felt the touch of something bright and friendly. It made me feel happy, lively and warm.
【小题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 bee my best friend now!
One day, I asked him why he smiled, but he couldn’t remember smiling at me! 【小题5】I believe that the world is what you think it is. If you think it lonely, you might always be alone. So smile at the world and it will smile back.A．At that moment, a boy entered the classroom.B．He is living in Australia now and he loves it.C．It doesn’t matter because all the dark days have gone.D．It was a smile.E.That smile changed my life.
F.It’s practically impossible to make friends here.
G.As a result, no one knew who I was.D
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(答案→)D
解析：
【小题1】D 上下文串联。根据下文可知他给我的礼物是微笑。
【小题2】G 根据下句我很孤单，什么吗在学校里没有人认识我。故G符合上下文。
【小题3】A 根据上文可知别的同学聊的很开心，而我和往常一样孤单地在自己的桌子。根据下文他从我旁边经过，说明他走进了教室。
【小题4】E 根据上文说那个微笑让我开心温暖。这个微笑改变了我的生活。
【小题5】Ｃ上文说他记不得对我微笑了，不过这些都没有关系，因为那些黑暗的日子都过去了。C项符合上下文。