职教组卷基于海量职教高考试题库建立的在线组卷及学习系统
职教组卷
  • 题型:英语知识运用 题类:其他 难易度:较难

    Not until ________ the house _________ that he had left the keys inside.

    A. he left; realized he B. he left; did he realize C. did he leave; had he realized D. he had left; did he realize
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