高等继续教育 / 高级英语I
正确率：100%
题型描述: 单选题
It suddenly dawned ＿＿＿＿＿＿ me that there was another thing that cntributed ＿＿＿ there economic success.
A.to,to
B.to, for
C.on, to
D.on, for
It suddenly dawned ＿＿＿＿＿＿ me that there was another thing that cntributed ＿＿＿ there economic success.
A.to,to
B.to, for
C.on, to
D.on, for
参考答案：