Solutions to practice puzzles in DESCRIP.TXT:

1. red, rad, ray, say, sky

2. fire, fare, bare, bale, sale

3. hard, hark, hack, hock, rock

4. call, hall, hale, hole, home
 
5. pear, tear, tare, tyre, trey, tree

6. truck, track, crack, clack, clank, clans, clays, plays, playa, plaza

7. sugar, guars, gears, sager, lager, glare, blare, blame, amble, ample, maple