To complete the paragraph, let's fill in the blanks with the most appropriate words from the given options.
"Last week, Harvey bought a bike. It was quite expensive, but he had saved plenty of money from his Saturday job. The first day, he rode it very slowly and sensibly to get used to it."
"At the end of the street, there is a hill. He rode fast down it, ignoring the country lanes near his house. He forgot about a bump, and he fell badly. It hurt him a lot, and he fell off. Unfortunately, he wasn't sensible enough - he broke his arm."
This fills in the paragraph with the appropriate words for each blank, ensuring the story flows logically.