People working 10 or 11 hours a day are more likely to suffer from health problems than _____who go off duty after eight hours.
Did you have any trouble ____ the post office?
- How long has the bookshop been in business? -____1982.
He looked quite healthy ____ he was ____ the age of seventy.
Does John know any other foreign languages ____ French?
The old man died ____ cold ____ a cold night.