21. “ What ' s happened , anyway ? ” he asked in an uncertain voice . 22. Don't cry because it's over, smile because it happened. 23. Longest continuous work happened on %(date)s and was %(hours)s hour. 24. This happened few days after he complained of abdominal pain. 25. I don't know if he really meant [that], but it happened. 26. Military operational airplane. It's never happened before. 27. Of the events that have happened to us when we want to imagine them. 28. It happened after some day when he complaint about stomach ache 29. And who was really involved and what really happened, 30. happened to have English as its official language.
