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

    A number of books in the library _______been stolen so the number of them_______ smaller than before.

    A. have, is B. has , is C. has , are D. have, are 
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