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

    The police officers are on duty during the Spring Festival________people can live a peaceful and happy festival.

    A. in case B. as if C. in order that D. only if 
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