【2010广西.桂林】四、完形填空 （每小题1分，共10分）
请阅读下面短文，选择最佳答案，将其标号在答题卡上涂黑。
Smiling is the best way of making friends.
When I was thirteen 46 old, my father found a job in the city. So my family moved there. I also came to a 47 school near where we live. My old school was far away. At first, I did not know anyone in my class. I was very lonely 48 I was afraid to make friends with my classmates. I 49 talk to anyone about my problem, and I didn’t want my parents to 50 me.
