English work

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Across
  1. 3. someone how does something expecting nothing in return
  2. 5. To deal with somthing
  3. 8. the hard side in the things we do
Down
  1. 1. to give permission
  2. 2. at night we
  3. 3. a big selecting option
  4. 4. a change between somthing
  5. 6. to help with something
  6. 7. somthing that has no power