41.   The campaign is strictly print to keep down the cost, Levitan said.

42.   The cure is to ventilate the house to keep down the amount of water vapor in the air.

43.   The HMO uses various ways to keep down costs, such as leaning on doctors deemed to be ordering too many tests, referrals to specialists and hospital stays.

44.   The glut of crude oil helped keep down gasoline prices, which normally rise in the spring as demand increases.

45.   The oil not only kept down dust, but combined with the gravel to make a subtantially sturdier surface.

46.   The U.S. also increased pressure on Japan to keep down its merchandise trade surplus.

47.   There also might be a short supply of specially formulated gas used in some cities to keep down emissions.

48.   These are important exercises, serving to employ pollsters and keep down the unemployment rate.

49.   These medications, which keep down swelling in the nose by damping down the inflammatory response, usually take a number of days to begin working.

50.   This keeps down expenditures for fabrics, which means a lesser investment is needed to go into business.