Question

Meeting my uncle after all these years was an unforgettable moment, ________ I will always treasure.

[　　]

A．that　　　　　B．one

C．it　　　　　　D．what

Answer 1

答案：
解析：

题中的one是an unforgettable moment的同位语，也是先行词，其后就是一个定语从句，省略了作宾语的关系代词。