问题
选择题
You were rude to your sister, _____you should make an apology to her.
A．whom
B．for which
C．for whom
D．which
答案
答案：B
题目分析：考查从句，从句you should make an apology to her不缺少成份，for which相当于why，所以选B
点评：从句是个难点，是高考常考内容之一，要求学生能够分析理解句子的结构，熟记连词关系词的句法功能。要求考生知道引导词的用法
