练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Little _____ about A-H1N1 so far, so there is no doubt that many people are afraid when talking about the
    disease.

    A. did scientists know
    B. scientists have known
    C. have scientists known
    D. had scientists known
    C
    请在这里输入关键词：
    相关习题

    科目：高中英语 来源：安徽省模拟题 题型：单选题

    Little _____ about A-H1N1 so far, so there is no doubt that many people are afraid when talking about the
    disease.
    [     ]
    A. did scientists know
    B. scientists have known
    C. have scientists known
    D. had scientists known

    查看答案和解析>>


    同步练习册答案