问题
选择题
Is that the reason __________ you are in favor of Obama for the second round?
A．which
B．why
C．the one
D．for which
答案
答案：B
考查定语从句的从发。本句陈述句式为that is the reason why you are in favour of Obama for the second round. Reason 是后面定语从句所修饰的先行词，在从句中做原因状语。相当于for which'