Only when the process of meeting the basic need for food reached a certain level _______ to follow other pursuits．A.it was possible for humansB.was it possible for humansC.were humans possibleD.possible for humans it was
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B解析Only开头修饰状语时，句子部分倒装。所以结构上只有B项符合要求。这句句子的意思是“只有满足对食物的基本需求，并且达到一定程度时，人类才有可能追寻其他目标。”