BIRTHDAY SURPRISE!

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Across
  1. 4. moving cable transportation
  2. 6. long narrow pieces of hard flexible material
  3. 9. a rising or falling surface
  4. 11. 1/7/1990
  5. 14. a joyful emotion
  6. 15. solo
  7. 16. pertaining to
Down
  1. 1. a function word
  2. 2. 24 hours
  3. 3. small cards that give the holders a certain right
  4. 5. common preposition
  5. 7. an act of making a decision between two or more possibilities
  6. 8. to be desired or approved of
  7. 10. determiner
  8. 12. a pair
  9. 13. associated with the person