填空题 (It can be argued) that the problems, even something (as fundamental as) the (ever-increased) world population, (have been) caused by technological advance. A. It can be argued B. as fundamental as C. ever-increased D. have been caused
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【正确答案】 1、C改为ever-increasing    
【答案解析】[解析] 现在分词通常用来表示主动，而过去分词则表示被动。population与increase间是主动关系，所以应改为ever-increasing。