Prepositional phrases. Choose the correct preposition.

1. He is _____ a diet.

2. You need to have your documents _____ hand.

3. The elevator was out _____ order.

4. She transferred me money _____ mistake.

5. I will be with you _____ a moment.

6. They left town _____ anticipation of the political crisis.

7. He donated the money _____ a good cause.

8. The old barn was _____ flames.

9. It took me _____ surprise.

10. It is prohibited _____ law.