1. 答え   teaching   answer   correction   learn   Hint Half-n-half Clue   2. 書く   homework   correction   write   lesson   Half-n-half Clue   3. 教訓   teach   teaching   read   correction   Half-n-half Clue   4. 訂正   correction   learn   answer   examination   Half-n-half Clue   5. 学ぶ   teach   learn   examination   homework   Half-n-half Clue   6. 勉強   answer   lesson   study   teach   Half-n-half Clue   7. 学課   lesson   study   learn   teaching   Half-n-half Clue