ENGILISH PUZZLE

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Across
  1. 2. a vehicle that files
  2. 5. to leave rubbish on the ground
  3. 9. the surface of the Earth
  4. 10. a sound which is often loud
  5. 12. a ball of liquid which contatins air or gas
  6. 13. causing death
  7. 14. to keep sth out of view
  8. 15. to lie down in a horizontal position
  9. 17. a bus for long journeys
  10. 18. to get away
  11. 19. a long vehicle which travel under a city
  12. 20. a system of trains which travel under a city
  13. 21. to have a price
Down
  1. 1. to come out of a place on your hands and knessear
  2. 3. to give sb food to eat
  3. 4. the part of a vehicle that uses fuel to make it move
  4. 6. a sudden violent movement of the earths surface
  5. 7. an area of land which is covered in wet soil
  6. 8. a small insect that flies and feeds on blood
  7. 11. to move down into a place without intending it
  8. 16. a substance which keeps insects away