1. The ship successfully underwent sea trials in coastal waters.

2. I underwent aversion therapy for my addiction to smoking.

3. He underwent a three-hour heart operation.

4. They underwent courses in radio communication, demolition, and sabotage.

5. The patient had/underwent surgery on his heart.

6. He underwent a lot of hardships in his childhood.

7. She underwent an operation on a tumour in her left lung last year.

8. The company underwent a massive upheaval after the takeover.

9. The explorers underwent much suffering.

10. She underwent a series of blood tests.

11. He underwent surgery to remove a blood clot.

12. He underwent open - heart surgery.

13. She underwent microsurgery to re-attach her severed fingers.

14. He underwent major heart surgery recently.

15. My mother underwent major surgery last year.

16. In the late eighties he underwent a religious conversion.

17. Mr Clark underwent five hours of emergency surgery.

18. He underwent quite a conversion.

19. The company underwent restructuring and 1500 workers lost their jobs.

19. Sentencedict.com is a sentence dictionary, on which you can find excellent sentences for a large number of words.

20. Only 12 weeks ago he underwent major heart transplant surgery.

21. The company underwent a rebirth five years ago and is now a market leader.

22. She underwent a minor operation on her elbow in the summer.

23. Our agenda underwent a rapid change after the chairman's resignation.

24. She underwent a heart transplant in a last-ditch attempt to save her.

25. He underwent an agonising 48-hour wait for the results of tests.

26. She began by supporting monetarist economics, but later underwent quite a conversion when she saw how it increased unemployment.

27. He underwent an expensive operation to give him back his sight.

28. After the accident, he underwent reconstructive surgery to rebuild his face.

29. Rose underwent emergency surgery after a bullet pierced her lung.

30. And the Williams piece underwent some significant changes.