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 1

C

解析试题分析：句意：过去我们在晚饭后常常去公园里散步，谈论的都是我们感兴趣的话题。过去常常做某事used to do…；后一句是定语从句，先行词是all，引导词要用that。故选C。
考点：考查动词及定语从句。