1. The witness was placed ___ oath before giving her testimony.

2. I’m sorry, but this seat is already ___ use.

3. The strike resulted ___ the cancellation of all domestic flights.

4. You should try to keep your head and stay ___ control during the emergency.

5. The two companies are ___ competition with each other for the contract.

6. I’m not really ___ the mood for a long discussion right now.

7. My grandfather is still ___ very good health for his age.

8. The teacher read the poem ___ loud so we could hear the rhythm.

9. You need to pay for the course ___ advance to secure your spot.

10. The manager is ___ the impression that you want to resign.

11. I’m writing to you ___ behalf of the entire committee.

12. The old factory has been ___ sale for quite some time now.

13. The project is currently ___ progress and will be finished soon.

14. We were all ___ shock when we heard the news of the accident.

15. The car was traveling ___ a very high speed when the tire blew.

16. I have a lot ___ common with my roommate, which is lucky.

17. The new law will come ___ effect from the beginning of next month.

18. She has a very positive attitude ___ her new responsibilities.

19. He’s been ___ a diet for a month, but he hasn't lost much weight.

20. The project is ___ threat of being cancelled due to lack of funds.

21. I’m very grateful ___ you for your hospitality during my stay.

22. The doctor said that the patient is no longer ___ danger.

23. I met my former teacher ___ chance in the supermarket yesterday.

24. You must arrive ___ time for the meeting; the boss is very strict.

25. The local library is ___ the process of being renovated.