第11题: [单项选择]July 4 is the date on ______ Americans celebrate gaining their independence from the British. A. when B. that C. which D. whom 参考答案:C 答案解析:介词后面可以接的关系代词是(C)选项which与(D)选项whom。但是先行词the date是事物,因此正确答案是(C)选项which。如果没有介词on,那么可以使用(A)选项when,代替on w