CHEW ON THIS PUZZEL

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Across
  1. 3. who made hamburger meat out of Meatballs?
  2. 5. how were the others?
  3. 6. and younger McDonald's tried to sell toys too?
  4. 7. what is the book bout?
Down
  1. 1. who fired car hops and close their restaurant?
  2. 2. people were afraid of?
  3. 4. how were tested on?