阅读下列短文，从每个小题所给的选项中选出最佳答案。
Sixteen years ago a boy gave me an important gift. It was a smile.
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. I couldn't talk with
anyone about my problems.
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. I didn't know who he was. He passed me and
then turned back. He looked at me, with a smile.
Suddenly, I felt the touch of something bright and friendly. It made me feel happy, lively and warm.
That smile changed my life. 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. 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.
1. When did the writer get the gift?
[ ]
A. When she was 16 years old.
B. After she made friends with the boy.
C. In her first year at a middle school.
D. After she became closer to everyone in her class.
2. Why was the smile an important gift?
[ ]
A. Because the writer's old school was far away.
B. Because the writer didn't know who the boy was.
C. Because the smile didn't mean anything to the boy.
D. Because it made the writer feel happy, lively and warm.
3. Where does she now think her feeling of unhappiness came from?
[ ]
A. From her old school.
B. From her parents.
C. From herself.
D. From her classmates at the new school.