Plurals -ies and -ves crossword

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Across
  1. 3. Copy
  2. 7. Library
  3. 8. Study
  4. 10. Elf
  5. 11. Half
  6. 12. Scarf
Down
  1. 1. Wolf
  2. 2. Loaf
  3. 4. Calf
  4. 5. Try
  5. 6. Sky
  6. 9. Shelf