单选题 The schools ______ black children went were simply not good enough.

【正确答案】 A
【答案解析】该题考查定语从句关系代词与介词的搭配。①当定语从句中的介词提前时,修饰物的关系代词只能用which不能用that;②介词的使用取决于从句中词汇的搭配,go to school意为“去上学”。故此空只可填to which。