1. Cars should be kept out of the city centre.
2. We wanted to soothe the child, but she kept on crying.
3. He had to learn hard to keep up with the others.
4. Keep back so that each man may have a fair view.
5. My sister kept on asking me question after question.
6. We try to keep up with what’s happening.
7. Keep them out of the lab. It’s very dangerous!
8. “Keep back from the fire!” the police shouted at the crowd.