1. 黒板   library   grade   blackboard   book   Hint Half-n-half Clue   2. 学校   grade   eraser   desk   school   Half-n-half Clue   3. 本   eraser   book   paper   blackboard   Half-n-half Clue   4. 机   blackboard   desk   teacher   bag   Half-n-half Clue   5. 万年筆   book   student   pen   blackboard   Half-n-half Clue   6. 図書館   library   teacher   bag   school   Half-n-half Clue   7. 椅子   chair   pen   blackboard   teacher   Half-n-half Clue