Liberty, equality, and fraternity are the ideals _______ human beings have been fighting.

Liberty, equality, and fraternity are the ideals _______ human beings have been fighting.
A. to which B. against which C. with which D. for which
【答案】D
【解析】
【分析】
【详解】考查定语从句。句意：自由、平等、博爱是人类一直为之奋斗的理想。分析句子，此处考查介词加关系代词时，介词的选择。从句 fight译为“奋斗”，根据句意译为“为…...奋斗”为fight for，是固定搭配。for 可提至关系代词which前。故选D项。