1. On rare occasions one even sings, but haltingly.

2. On rare occasions, they preach.

3. On rare occasions, some greyhounds race beyond their sixth birthday.

4. You will only want to do this on rare occasions.

5. He had not cried except on rare occasions of enormous sorrow in all the years thereafter.

6. Several astronomers reported that, on rare occasions, they could see something akin to these canals.

7. On rare occasions, owners fail to redeem their property and the county government deeds it over to the investor.

8. And on rare occasions, we may actually experience something of that sort.

9. And, except on rare occasions, they identify the sources of their information so the audience can evaluate its credibility.

10. On rare occasions, there were open-air performances which the public could attend.

11. On rare occasions, application issues can arise in the multiple JVM configuration that are not possible in the single JVM configuration.

12. On rare occasions, it is a feature of craniosynostosis or skull deformity by compression with a fibroid.

13. Avian influenza viruses are highly species-specific, but have, on rare occasions, crossed the species barrier to infect humans.

14. On rare occasions, however, a virus will infect the T cell and become dormant.

15. On rare occasions, avian influenza viruses have crossed the species barrier to infect humans.

16. These adjustments can, on rare occasions, cause erroneous benchmark results.

17. On rare occasions, eldritch giants will seek out civilized lands in order to buy large quantities of raw materials such as paper, ink, and the rare materials used to create magic items.

18. On rare occasions, the gas plumes spontaneously ignite, shooting flames high into the sky.

19. On rare occasions, travellers from areas where Lassa fever is endemic export the disease to other countries.

20. I rent out only on rare occasions for special events.

21. The majority of aberrations are sporadic although on rare occasions a chromosomal disorder is directly inherited.

22. Except on rare occasions she always wore her riding habit, for whether she rode or not she always expected to ride and in that expectation put on her habit upon arising.

23. Mr Linton would take her with him a mile or so outside, on rare occasions; but he trusted her to no one else.

24. Parents are given the option of spanking their child themselves; on rare occasions, they come to the school and use their own belts.

25. So it makes sense that they would feel prized by having their person known by another, if only on rare occasions.

26. Swathed in white protective masks and suits, residents are bused into the zone on rare occasions to retrieve valuables and check on their homes.

27. If it doesn't 'there's no point in going any further, she says, though on rare occasions exceptions may be made for candidates who name salaries above the maximum for a job.

27. try its best to gather and make good sentences.

28. The New York Times reported Thursday that Pakistan has used the F-16's against the extremists only on rare occasions, because of concern about potential civilian casualties.

29. For most people, presence is experienced either never at all or only accidentally and briefly on rare occasions without being recognized for what it is.

30. The enemies of the people whom the Soviet authorities sent to camps in the gulag[1] were, on rare occasions, permitted conjugal[2] visits.

31. On rare occasions the toes can come out of the water, but generally you want the kick under the water.