徐州市2014
高考英语一轮完形填空和阅读理解基本训练(5)附答案 foresters are people who work with trees and know a lot about them. occasionally, foresters have problems, and the foresters in southern indiana have had many problems. the foresters were doing an experiment. they wanted to grow walnut (胡桃) trees by planting walnuts in the ground. if they succeeded, the foresters would be able to control the location of the trees. also, this method would be much cheaper than transplanting or moving nut trees that were grown in plant nurseries (苗圃)