21. During the pre-development period , the Missouri River represented one of North America s most diverse ecosystems. 22. This development period should span six months after which an evaluation of " Proof of Concept" 23. Please bear with us during this development period . 24. Children are on the physiological development period , they should have healthy habit in their daily life. 25. It was not until the last third of the development period that the editor improved significantly. 26. Soybean fields were also dry, though that crop's critical development period isn't for a few more weeks. 27. Harvests are months away, with the heat of summer, and the key July development period , just ahead. 28. For oil, exploration and development periods are five years each and the production period is 25 years. 29. "Prey " as a game was to go through many different forms during this first development period . 30. After a protracted development period , the Swift entered service as an interceptor aircraft with the RAF in 1954.
