1.   Shackleton ordered the glass negatives destroyed to prevent Hurley from trying to salvage them.

2.   Entire herds have been destroyed to prevent the spread of the disease.

3.   Foot-and-mouth disease is harmless to humans but has devastated livestock in Britain because herds are destroyed to prevent its spread.

4.   Foot-and-mouth is harmless to humans but has devastated livestock in Britain because herds are destroyed to prevent its spread.

5.   Foot-and-mouth disease is not harmful to humans but it spreads so quickly that entire herds and flocks must be destroyed to prevent its spread.

6.   Foot-and-mouth disease is generally harmless to humans but has devastated livestock in Britain because herds are destroyed to prevent its spread.

7.   Foot-and-mouth disease is harmless to humans but has devastated livestock in Britain, because herds are destroyed to prevent its spread.

8.   Foot-and-mouth disease is generally harmless to humans but has devastated livestock in Britain because herds must be destroyed to prevent its spread.

9.   Foot-and-mouth disease is not harmful to humans, but it spreads so quickly that entire herds and flocks must be destroyed to prevent its spread.

10.   The building was destroyed to prevent the flames from spreading to neighboring houses.