1. oak   roble   cedro   haya   castaño   Hint Half-n-half Clue   2. cedar   cedro   abeto   abedul   pino   Half-n-half Clue   3. maple   arce   roble   haya   olmo   Half-n-half Clue   4. beech   haya   arce   roble   abedul   Half-n-half Clue   5. poplar   álamo   olmo   castaño   abedul   Half-n-half Clue   6. elm   pino   abedul   olmo   haya   Half-n-half Clue   7. birch   haya   abeto   abedul   álamo   Half-n-half Clue