问题描述：
__________ proves that my advice is right.
A.It will happen that B.That has happened
C.What has happened D.When it happens
此题应该怎样选?为什么?
及此句的意思
A.It will happen that B.That has happened
C.What has happened D.When it happens
此题应该怎样选?为什么?
及此句的意思
问题解答：
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