根据魔方格专家分析，试题“David failed in the final examination last term and only then________how much time he had wasted before.[ ]A. had he realized B. he had realizedC. did he rea…”主要考查了你对  【一般过去时】，【部分倒装】  等知识点的理解和应用能力。关于这些知识点的“档案”，你可以点击相应的链接进行查看和学习。

与“David failed in the final examination last term and only then________how much time he had wasted before.[ ]A. had he realized B. he had realizedC. did he rea”考查相似的试题有：