Revision

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Across
  1. 5. able to see
  2. 6. factual books
  3. 7. to have wheels come off the track
  4. 8. feeling joyful
  5. 9. unable to see
Down
  1. 1. able to be digested
  2. 2. keeping your room clean
  3. 3. no caffeine
  4. 4. does not make sense