Question

We _____ walk in the park after supper, talking about all _____ we were interested in.

A. used to, what    B. were used to, what    C. used to, that    D. were used to, which

Answer

C

【解析】

试题分析：句意：晚饭后我们过去常常在公园散步，谈论我们感兴趣的所有事情。be used to doing sth 习惯于做……，used to do sth,过去常常做某事。定语从句中的连接词在下列情况下一般只用that而不用which ：
先行词本身是all , everything , something , nothing , anything等不定代词时， 先行词已有序数词或形容词的最高级或the last, the only等作定语时，先行词既有人又有物时。根据句意，故选C。

考点：考查固定结构及定语从句的用法。