1.   As his sleep problem developed, he could only manage two or three hours of sleep, frequently disturbed by vivid dreams.

2.   At later stages a few problems did develop, but they involved only a small minority of the cases.

3.   But there are sometimes hitches in this complicated process and problems can develop.

4.   Without an efficient system and good professional advice, unforeseen problems can develop into major setbacks.

5.   The Magnox plant was shut down over a year ago by its operators, Nuclear Electric, after problems developed with its steel reactor pressure vessels.

6.   Also unveiled were two secondary routes that would be pursued if problems develop with the primary one.

7.   An interested and active parent can help a child learn, make sure the assignments are completed, and talk to the teacher if problems develop.

8.   And since elk are so adaptable, a forage competition problem could develop.

9.   And if problems develop between an adviser and a student, there are two others left.

10.   And, where information is lacking, the government is seeking shorter duration and more clauses that would force landowners to tighten safeguards if new species problems developed.