当前学科:成考
  • 题目: 单选

    John________  he could improve his exam results, but he did not have enough time to study.

      A . knows how
      B . knows that
      C . knew how
      D . knew that

    答案: <查看本题扣1积分>

    查看答案

    答案不对?请尝试站内搜索