练习册

  • 练习册
  • 试题
    Li Lei found it difficult out the problem. A.to work B. worked C. working D. wored 【查看更多】

     

    题目列表(包括答案和解析)

     Li Lei found it difficult ______ out the problem.

    A.to work      B. worked         C. working       D. wored

    查看答案和解析>>


    同步练习册答案