摘要：404] Not until Mr. Smith came to China what kind of a country she is from. [译文] 直到他来到中国.斯密斯先才知道她来自一个什么样的国家. A. Didn’t he know B. Had he known C. Hadn’t he known D. Did he know [答案及简析] D. not until 在句首主句要部分倒装.

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