Only then___how much damage had been caused A:did she realize B:had she realized

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Only then___how much damage had been caused A:did she realize B:had she realized
Only then___how much damage had been caused A:did she realize B:had she realized

Only then___how much damage had been caused A:did she realize B:had she realized
答案是A
倒装是毫无疑问了
主要是用DID 还是 HAD
这个语境 只是那时候 并没有需要用完成时态的语义 所以就是过去那一会 故 A

A
realize是在过去发生的动作,而引起的破坏是比过去还靠前的动作
也就是说在“过去”意识到“过去的过去”的事情的发生

A:did she realize 一般过去时的倒装结构,Only强调状语置于句首,要进行主句部分谓语部分倒装。