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Across
  1. 1. to make sb/sth interested to come somewhere or take part in sth
  2. 4. having controls that work without needing a person to operate them
  3. 6. belonging to a period of history that is thousands of years in the past
  4. 7. (of things) that you can get, buy or find;(of a person) free to see or talk to people
  5. 8. very surprising, especially in a way that makes you feel pleasure or admiration
Down
  1. 1. completely; in every way;used to give a total number or amount
  2. 2. something that you want to do or achieve very much
  3. 3. funny and enjoyable
  4. 4. a quantity of sth(used especially with uncountable nouns)
  5. 5. the group of people who have gathered to watch or listen to sth (a play, concert, sb speaking, etc.)
  6. 6. [only before noun] calculated by adding several amounts together, finding a total, and dividing the total by the number of amounts