vocab 5/8

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Across
  1. 3. - to prove
  2. 4. - to emphasize
  3. 5. - to move as ripples
  4. 7. - to promise
  5. 8. - urgently necessary
Down
  1. 1. - production of amount
  2. 2. - to prove to be reasonable
  3. 6. - never happened happening before
  4. 7. - ability to be done practically