Vocabulary activity

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Across
  1. 4. being alone
  2. 5. empty
  3. 6. to hide
  4. 8. having no faults
  5. 10. a group of musicians
  6. 12. sought after
Down
  1. 1. to follow something
  2. 2. not real
  3. 3. echoes of sounds
  4. 7. studying in same class
  5. 9. record breaker
  6. 11. to make a copy