Grammar With Readings 4
Before 1900, very few people died of heart disease. Since then, heart disease (1) ---- the number one killer in the United States. The age of technology has made life easier and made people more (2) ---- to heart disease. Before the Industrial Revolution, (3) ---- people made their living through some sort of manual labor. Walking was the major means (4) ---- transportation. Laundry was scrubbed and wrung by hand. Stairs were (5) …., carpets were beat, and butter was churned.