练习册

  • 练习册
  • 试题
    If you want to prevent yourself from catching diseases, you must keep your living environment . A. clean B. to clean C. cleaning D. dirty 【查看更多】

     

    题目列表(包括答案和解析)

    If you want to prevent yourself from catching diseases, you must keep your living
    environment _______.      
    [     ]
    A. clean    
    B. to clean    
    C. cleaning    
    D. dirty

    查看答案和解析>>


    同步练习册答案