The salt merchant and the donkey

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Across
  1. 2. puente
  2. 4. espalda
  3. 5. empujar
  4. 7. final
  5. 8. sal
  6. 9. mercado
  7. 12. comprar
  8. 13. vender
  9. 14. jalar
  10. 16. algodón
Down
  1. 1. mercader
  2. 3. burro
  3. 6. pesado,os,a,as
  4. 8. arroyo
  5. 10. resbalarse
  6. 11. caerse
  7. 15. liviano,os,a,as