题目

Are you happy? Most of the time, we make it hard to enjoy our lives by pursuing something that seems impossible. Happiness is possible for us all. First, we have to define what happiness is, and then reframe it if necessary.For many, they have never-ending restrictions. I know this because I did so. I would think if only this would happen then I will finally be happy. When the great event happened, however, I didn't take the time to enjoy the moment. I just added another restriction and continued to dream of something I would never attain.In my view, happiness is not an event nor a person. It A survey of the opinions of experts ____ that drinking a glass of hot milk before going to bed helps one sleep well．A．showsB．showC．is showingD．have shown