单选题 There had been windows on the westerly side of the school, but they appeared to have been built up for a long time ______ of the workmanship on the outside.
【正确答案】 D
【答案解析】[解析] 句意：校园的西边有一些窗子，但是从外观判断他们已经存在很长时间了。judging from由…判断出，现在分词做独立成分，和句子的主语没有关系，一般可以认为动作发出者是作者或大众一般视角。所以D选项正确。