you tell me the day before yesterday算是插入语么

问题描述:

you tell me the day before yesterday算是插入语么
原句是The gentleman _______ you tell me the day before yesterday proved to be a thief "_______"里是要填的 A who B about whom C whom D with whom

选who,定语从句,the day before yesterday 是时间状语.who 引导的定于从句修饰the gentleman