Let’s imagine this:// You hear a new song and don’t like it much.// However, after hearing it many times, you ①(   start   ) (     to     ) enjoy it.//
　This phenomenon is called “the mere exposure effect.”// The more you see or hear something, the more familiar you become with it.// In the end, you tend to like it.//
　Why does this happen?// It is natural that people are afraid of new things because those things could be harmful to them.// However, when people experience the same thing over and over and nothing bad happens, they ②(   start   ) (     to     ) realize that there’s nothing to worry about.// As a result, they begin to accept it.// This feeling even leads to love for it.//
　But too much exposure to something may cause you to ③(    get    ) (   tired   ) of it.// When you see the same TV commercial over and over again, you might want to skip it.// Be aware of the positive and negative aspects of the mere exposure effect.//