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:选择题 题类:单元测试 难易度:难

    He is a good man, because he ________.
    A. was used to helping others B. is used to help others C. is used to helping others D. were used to help others