Choose the correct words.

A single ... of antibiotics may be as effective as multiple ones. A 74-year-old woman was pronounced dead at the ... of the accident. Harmful bacteria are the most common cause of food-borne ... . He’s in hospital recovering from a\(n\) ... on his leg. He broke his arm and now has it in ... . Scientists haven’t discovered a ... for the common cold. A bone fracture is a break in a bone. The children’s ... at the local hospital is being renovated.