Prefix "ad" words

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Across
  1. 1. stick to
  2. 3. change
  3. 4. confess
  4. 6. think highly of
  5. 8. alter
Down
  1. 1. grown-up
  2. 2. counsel
  3. 4. cherish
  4. 5. combine
  5. 7. speak to