C 先行词是the last time ,所以要用when引导后面的定语从句.
句子结构是 主语 the last time ,we had great fun作定语,was做谓语
when we were visiting the water park 定语从句做宾语,
C 先行词是the last time ,所以要用when引导后面的定语从句.
句子结构是 主语 the last time ,we had great fun作定语,was做谓语
when we were visiting the water park 定语从句做宾语,