101.   They do not seem to be getting any worse, but is there anything I should do to prevent the cracks from getting larger?

102.   They have devoted years to unraveling the intricacies of why craters appear in teeth and what can be done to prevent cavities from developing in the first place.

103.   This is already done to prevent contamination of elite conventional strains of sugar beet and potatoes, he says.

104.   This was done to prevent U.S. soldiers from seizing the arms at the garrison, Habets said.

105.   This article focuses on the latest research and what all parents of young babies should do to prevent it.

106.   This was not a time for arguing over what could have been done to prevent the tragedy and what should be done about the bonfire.

107.   Truth is, nothing can be done to prevent race-car drivers from dying in race accidents.

108.   We need to do everything that a free society can do to prevent another Oklahoma City.

109.   What can I do to prevent decay of both the shingles and the deck boards?

110.   What could we have done to prevent this?