问题
选择题
The weather turned out to be very good,________ was more than we could expect.
A．it
B．that
C．when
D．which
答案
D
非限制性定语从句。it不能在逗号后单独引导一个句子,可以用...,and it...。when引导句子时,其前不必用逗号。that不能引导非限制性定语从句,即其前有逗号的定语从句。只有which可以引导非限制性定语从句。故选D。