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