09届高三英语第一学期10月月考试题
第一节 单项填空 (共15小题;每小题1分,满分15分)
请认真阅读下面各题,从题中所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
21.Centuries ago, ____ man discovered that removing moisture(水分) from food helps to preserve it, and that the easiest way to do this is to expose ______ food to sun and wind.