41.   Davis plays an enormously influential role in city politics.

42.   Developers were obliged to adopt a highly active role in locating land.

43.   Direct mail pieces play a critical role in Marketing campaigns.

44.   Do you play an active role in your community?

45.   Does he have a guilty conscience about his role in the crime?

46.   Echolocation, too, plays an important role in food hunting for dolphins and toothed whales.

47.   Effective communication plays a key role in the democratic process.

48.   Emma plays far too passive a role in group discussions.

49.   Encourage women to play expanded roles in their communities?

50.   Energy efficiency can play a huge role in reducing pollution.