My wallet is missing,but I really don’t know _________it dis

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My wallet is missing,but I really don’t know _________it disappeared.
A.when it was that B.it was when that C.when was it that D.it was when
请详细说明选择理由,

B it is/was ...that 是强调句型,可以省略
宾语从句用陈述句语气,所以B
我的钱包掉了,我真不知道它到底是什么时候丢的.

My wallet is missing,but I really don’t know _________it dis 改错句子 I really don't know where it was I left my wallet.怎么改? I's fantastic,but I still don't really know my I know ______ is _______ brother,but I really don't like You are the sunshinen in my life.But i don't really know He is thought to ___ in Africa,but i really don't know what i really don't know_i put my wallet after i paid the bill I really don't know when I will start my trip=I really don't I don't know where is my clourful-life.but i just know it ne i really don't know I don't know what can i do for you.but i missing you so much I really don't know __I had my money stolen.