Irregular words

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Across
  1. 1. how you feel in front of a fire
  2. 4. 100 years
  3. 7. how to construct a house
  4. 9. a way to keep fit
  5. 11. your choice
  6. 12. when you learn something
Down
  1. 1. The value of an item
  2. 2. you do this often
  3. 3. a healthy snack
  4. 5. to move slowly
  5. 6. These protect important buildings
  6. 8. a form of transport with two wheels
  7. 10. when two cars crash