Metacognition refers to the cognition of cognition, that is, the knowledge of cognitive subjects about their own cognitive processes and the ability to regulate these processes, and the knowledge and control of thinking and learning activities. The essence of metacognition is to cognition Self-awareness and self-regulation of activities. According to the above definitions, Which of the following include metacognition:. ['Xiao Kun often drinks "Brain Power".', "Keiko thinks Zhuangzi doesn't know the happiness of fish.", 'Xiao Zhao adjusts his attention and listens to the teacher carefully.', 'Xiaozhuang realized that he had handled something wrong.']