题目

As a teenager, I was pretty lazy when it came to doing thingsfor my family. I worked hard at school, and sometimeslooked after my younger sister. Still, I found myself regularly resisting the urge to   36   out at home with even the simplest things. Every Wednesday afternoon, for example, my mother   37   me to another town for a piano lesson. During my two-hour lesson, she’d rush to the nearby store and buy a week’s worth of   38  . Given the fact that my mom had driven me twelve miles there, twelve miles back,  39   for my lesson, and bought me a candy bar, you’d 15．已知函数f（x）是定义在R上的奇函数，其图象是一条连续不断的曲线，且$f（\frac{1}{2}+x）=f（\frac{1}{2}-x）$，则f（2016）=0．