21.   Long skid marks on the pavement indicated the driver had attempted to brake, police said, but they were still investigating whether it was an intentional attack.

22.   Many times, skid marks that lead to a crumpled spot on a guardrail get darker as they get closer to the point of impact.

23.   No students left skid marks screeching from the classroom in disgust.

24.   No skid marks were found to indicate that the driver tried to stop prior to the crash.

25.   Officer Victor Navarro of the Mexican highway patrol said skid marks at the scene confirmed that.

26.   On a drop-volley shot get against Capriati on Thursday, Serena left the skid mark of a getaway car.

27.   San Francisco does not want its pavement to be striped with colored skid marks from a new type of tire being promoted by the French tiremaker Michelin.

28.   Roughly half have laid down skid marks by the five-year mark.

29.   Skid marks showed its path out of the trees and across several hundred yards of drought-hardened earth.

30.   Skid marks through the field showed its path out of the trees and across several hundred yards of drought-hardened earth.