Only when the CIA Director David was forced to resignthat it's hard to keep ...

作者: tihaiku 人气: - 评论: 0
问题 Only when the CIA Director David was forced to resignthat it's hard to keep our e-mail secret.
选项 A.we realized B.realized we C.did we realize D.we did realize
答案 C
解析 考查倒装句。在以“only+状语”开头的句子中,句子要使用部分倒装,助动词要放在主语前。故选C。

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