People/ work/ offices/ have/ five-day week/ often/ say/ nine- to-five job//

People work in offices that have a five-day week and are often said to have a nine-to-five job.

People who work in offices have a five-day week and are often said to have a nine-to-five job.

People working in offices have a five-day week and often say to have a nine-to-five job.

People worked in offices which have a five-day week and are often said to have a nine-to-five job.