31. Airplane and television are among the____ of science.
32. All experts agree that the mostimportant consideration with diet drugs is carefully ____ the risks andbenefits.
33. Although Asian countries are generallymore ____ in social customs than Western countries, there have been severalnotable examples of women leaders in both Chinaand India.
34. Although he is very rich, his undutifulchildren are the ____ of his life.
35. Although he thought he was helping usto prepare the dinner, he was actually ____ the way.
36. Although most birds have only anegligible sense of smell, they have ____ vision.
37. Although sports ____ the household, Joedrew the line when they interfered with family traditions and routine.
38. Although the town had been ____ by thestorm several times, little damage was done.
39. America will never again have as anation the spirit of adventure as it ____ before the West was settled.
40. Among the many subjects in school,mathematics is probably the most _____, depending least on a student'sbackground and culture.