题目

—When did you come back last night? —It was not until 11 o’clock　　　the party ended. A. that         B. when             C. where            D. how 答案：B。考查省略句式。when引导定语从句, 省略了强调句后面的成分, 完整的句子为: It was not until 11 o’clock when the party ended that I came back. 。

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