1. 蜡笔   ruler   crayon   chair   blackboard   Hint Half-n-half Clue   2. 铅笔   pencil   student   bag   textbook   Half-n-half Clue   3. 纸   book   teacher   paper   bag   Half-n-half Clue   4. 笔   pencil   bag   pen   pencil sharpener   Half-n-half Clue   5. 课本   text   eraser   textbook   school   Half-n-half Clue   6. 学生   school   blackboard   student   text   Half-n-half Clue   7. 铅笔刀   desk   text   pencil sharpener   blackboard   Half-n-half Clue