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:期中考试 难易度:较难

    Never step back! Courage is all ________ takes to conquer that seemingly impossible mission.

    A. what  B. that  C. one  D. it
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