1. All meals begin ___ a short prayer.

2. I’ve been waiting ___ a refund cheque for several months.

3. She married an engineer who comes ___ Boston.

4. I called your office and spoke ___ your assistant.

5. Their future depends ____ how well they do in these exams.

6. We were talking ___ you last night.

7. Dan looked ___ his watch.

8. We have to think ___ a way to solve this problem.

9. He never participated ___ sports in high school.

10. I agree ___ what you said.

11. The police asked her the reason ___ her visit.

12. The answer ___ your question is yes.

13. We have no intention ___ giving up.

14. She has years of experience ___ the computer industry.

15. We place great emphasis ___ staff development.

16. It’s his fourth attempt ___ flying a balloon around the world solo.

17. She used her briefcase as a protection ____ the rain.

18. We’ve been having problems ____ the heating in the office.

19. We’re not allowed to give you any information ___ our client’s medical records.

20. What’s the difference ____ these two computers?

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