单选题 The public school system suddenly found itself ______. While the number of schoolchildren rose because of wartime and postwar conditions, these same conditions made the schools even less prepared to cope with the flood.
【正确答案】 A
【答案解析】[解析] 该句后半部分的内容是说“学校无能力对付……”，所以overtaxed当然就是“无能力对付”的原因了。