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

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,
英语人气:479 ℃时间:2020-03-11 04:22:27
优质解答
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.
我来回答
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