In the past, the workers were made __________ 12 hours a day.
Last month, doctors used a 3-D printer to rebuild the face of a person ____ had a bad accident.
- Shall we climb Nanshan this weekend? - Good idea! It’s not high. It’s about _____ high.
It’s widely known that you won’t achieve success _____ you work hard.
He thinks himself somebody, but we think him _____.
The boy failed the exam because he _____ a lot of time playing the computer games.