41.   Mateo suffered his season-ending injury Friday and requires the use of crutches.

42.   Many states have begun requiring the use of lighted signs in advance of closed lanes, instead of passive signs or barrels.

43.   Most scholars concur that such extended passages require the use of quotation marks.

44.   New locks require the use of opposable thumbs.

45.   Nearly three-fourths would support legislation to require the use of hands-free or speakerphone units in cars.

46.   Nor, they point out, would there be anything to prevent Congress from passing a law requiring the use of such systems.

47.   Of course, using through dovetails will require the use of the same stock for sides as front.

48.   Oil companies dislike ethanol because it cannot be transported in most pipelines, requiring use of costlier rail cars or tanker trucks.

49.   Other recent plans to prop up the stock market have found little support because they would require the use of taxpayer money.

50.   Requiring the use of crash data recorders in all cars next season.