spanish homework

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Across
  1. 2. bookstore
  2. 5. next to
  3. 8. history
  4. 10. physics
  5. 11. which?
  6. 14. psychology
  7. 15. to have breakfast
  8. 17. english
  9. 18. why?
  10. 20. de to the left of
  11. 21. wastebasket
Down
  1. 1. mathematics
  2. 3. which one(s)?
  3. 4. library
  4. 6. to arrive
  5. 7. economy
  6. 9. chemistry
  7. 12. de to the right of
  8. 13. biology
  9. 14. because
  10. 16. where (to)?
  11. 19. to have dinner