Puzzles.

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Across
  1. 3. ?
  2. 7. ??????????
  3. 9. ?????????
  4. 11. ????
  5. 12. ??
Down
  1. 1. ???????????
  2. 2. ???
  3. 4. ????????
  4. 5. ??????
  5. 6. ???????
  6. 8. ?????
  7. 10. ultimate virtual universe that lets you create, share