One day, a boy in math class found the lesson so tedious that he couldn't pay attention. He hid his phone behind a textbook to block the teacher's view. While watching videos, he became so immersed that he suddenly burst out laughing, drawing everyone’s gaze. Flushed with embarrassment, the boy watched the teacher walked down from the platform and confiscated his phone. Furious, the teacher gave him a choice: if he could solve the problem on the blackboard, his mother wouldn't be notified about his behavior. The boy walked up to the board, but his mind went blank. Seconds later, he heard a faint whisper from behind; his friend slipped a note with the answer onto the desk. Grateful, the boy quickly copied it onto the board. After class, he realized that regardless of whether a lesson is interesting, he must always pay attention.

  1. …so tedious that he…

  2. had his cellphone behind…

  3. While watching movies, he

  4. Flushed with embarrassment, he…

  5. confiscated his cellphone

  6. heard a whisper from behind

  7. slipped a note with answers

  8. Grateful, the boy…