练习册

  • 练习册
  • 试题
    27．Scientists are trying to develop a soya-based fuel for cars, which one day replace petrol． A．must B．should C．would D．may 【查看更多】

     

    题目列表(包括答案和解析)

    Scientists are trying to develop a soya-based fuel for cars, which ____one day replace petrol．

    A．must         B．should          C．would          D．may 

    查看答案和解析>>


    同步练习册答案