Birthday fun

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Across
  1. 4. Circle
  2. 6. Play area
  3. 8. Game
  4. 10. In one throw
  5. 11. having fun
  6. 14. glad
  7. 15. present
Down
  1. 1. Month
  2. 2. drifting to the left
  3. 3. October 29, 1979
  4. 5. Happy Birthday to you
  5. 7. phone
  6. 9. same DNA
  7. 12. It takes two
  8. 13. holder