[9급 지방직 영어 2019년 5번]

Each year, more than 270,000 pedestrians ① lose their lives on the world’s roads. Many leave their homes as they would on any given day never ② to return. Globally, pedestrians constitute 22 % of all road traffic fatalities, and in some countries this proportion is ③ as high as two thirds of all road traffic deaths. Millions of pedestrians are non-fatally ④ injuring ― some of whom are left with permanent disabilities. These incidents cause much suffering and grief as well as economic hardship.