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:较易

    A report on food safety in Beijing _______ on January 15th,2018 and it has received positive reviews.

    A. published  B. was published  C. has published  D. has been published
  • 相关试卷