Winton Castle (1) _was damaged_ (damage) in a fire last night.

Winton Castle (1) _was damaged_ (damage) in a fire last night. The fire, which (2) -had been discovered-- (discover) at about 9 o'clock, spread very quickly. Nobody (3) -was injured-- (injure) but two people had to (4) -be rescued-- (rescue) from an upstairs room. A number of paintings (5) -have been destroyed-- (believe/destroy). It (6) -isn't known-- (not/know) how the fire starred.