41.   The fire can spread very quickly.

42.   The fire quickly spread to the top floors of the building and was not brought under control until noon.

43.   The fires spread outward on the first couple of days, but have since started to recede.

44.   The object of the study is better understanding of how fire spreads in the absence of gravity.

45.   The resulting fire spread to gasoline and kerosene tanks.

46.   Their goal was to light a match and see if the fire spread.

47.   Their hand-held extinguishers were ineffective, and the crew, beaten back, forgot to close the engine room door, allowing the fire to spread quickly.

48.   This dead brush would allow any fire to quickly spread.

49.   This time, the clothes inside the suitcases caused the fire to spread more rapidly, and the tire finally exploded.

50.   Westwood Fire Chief Fred Schmidt said he arrived on the first truck within two minutes and found that the fire had already spread to the roof.