阅读短文，从A、B、C、D四个选项中选出可以填入空白处的最佳选项，并把答题卡上对应题目的答案标号涂黑。When I was a little boy,I was very shy. After class,I often stayed in the playground by myself and watched my 1 plying games.On weekends, I 2 went out to play with other children.
One day, some of my classmates asked me to play basketball with them. I wanted to 3 them.But I worried that the ball might hit(击中) me on the head and I couldn't play basketball at all.So I said to them,"Sorry, 4 next time."
That evening I 5 that with my father.He said,"My boy，playing basketball is not a(n) 6 thing.I'm sure you'll have fun 7 the activity."However, I was 8 worried. I was very short and thin. I couldn't 9 fast. My father said, " If you believe in (相信)yourself, you can do it well."
The next day,my father took me to a 10 and taught me how to play basketball.At first,I was a slow learner. After hours of practice,I felt that I loved the sport.
Later,some boys in the park asked me to play basketball 11 .I thought the game should be interesting, so I said yes.
We worked well 12 we didn't know each other.I ran after the ball and played hard. In the end,13 got points,so we were all happy and excited.
After that,I became interested in different 14 .I also made many friends 15 those fun activities. More importantly,I've learned that nothing is difficult if we believe in ourselves.
