1. ruler   deng ji   wen ben   shu   tong zhi zhe   Hint Half-n-half Clue   2. pen   shu bao   lao shi   [la;zha] bi   bi   Half-n-half Clue   3. student   shu bao   bi   shu zhuo   xue sheng   Half-n-half Clue   4. chalk   xue [jiao;xiao]   bai e   shu   xiang pi ca   Half-n-half Clue   5. pencil   lao shi   [qian;yan] bi dao   hei ban   [qian;yan] bi   Half-n-half Clue   6. blackboard   [qian;yan] bi dao   hei ban   shu   xue [jiao;xiao]   Half-n-half Clue   7. classmate   dai zi   [tong;tong] xue   shu   xue sheng   Half-n-half Clue