Xiao Wang complained that his mother always turned on the TV too loudly, which affected his reading, and asked his mother to turn off the TV. But his mother said that the sound of the TV was not loud, because his father had been reading the newspaper all the time and did not say that the TV sound was too loud, so she refused to turn down the TV sound.
Father brought his own earplugs while reading the newspaper, which worked well can best indicate that the mother's refusal to turn down the TV sound is wrong.