Cycling is highly __________ (benefit) to health and environment. 2. Her father was a quiet man with __________ (grace) manners. 4. He __________ (reaction) angrily to the suggestion that he had lied. 6. The Treasury Department plans to remove older coins from __________ (circulate) and replace them with new ones. 8. The disease spreads quickly under __________ (favor) conditions.