参考答案

正确答案：C
解析：事实细节题。第三段是Mrs．Sommers的购物计划。第二句指出：She would buy so and so many yards of percale for new shirt waists for the boys and Janie and Mag。这里准备买的是yards of percale(几码布)，选项D 符合文意；选项C 是对new shirt waists的解释，但买布是为了修补背心，而不是买背心，，这个下二句的she had intended to make the old ones do by skilful patching．可以得出，故C 为答案。第四句指出 Mag should have another gown．，选项A 中的robe与gown同义；倒数第二句指出She would get caps for the boys and sailor—hats for the girls，选项亡囚符合文意故排除。