Should He Cry or Laugh?

Reading Four's note, Old Guo wore a bitter face, "I'm so old. How can I still remember the classes they taught in elementary school? Besides, I was never a teacher…"

He was really a bad student when he was in school! Studying could kill him, not to mention teaching.

Four wrote him another note—'How about you teach me the basics? You're an adult. You must know more characters than I do!'

Old Guo looked at him and stayed silent for a few seconds.

He was not sure about that. For many words, he had even forgotten how to spell them! If the boy were still studying primary school classes, he might be able to help, but the boy was already reading the textbooks from junior high! He barely knew those rarely-used characters on the textbooks.