whereby用法，急求。。好心人。谢谢

alicejingli

这道题有人能帮我解释一下为啥WHEREBY在CD中是错的，能不能记成只要有WHEREBY据一定错？紧急，求详细解答


Under a provision of the Constitution that was never applied, Congress has been required to call a convention for considering possible amendments to the document when formally asked to do it by the legislatures of two-thirds of the states.
A. was never applied, Congress has been required to call a convention for considering possible amendments to the document when formally asked to do it
B. was never applied, there has been a requirement that Congress call a convention for consideration of possible amendments to the document when asked to do it formally
C. was never applied, whereby Congress is required to call a convention for considering possible amendments to the document when asked to do it formally
D. has never been applied, whereby Congress is required to call a convention to consider possible amendments to the document when formally asked to do so
E. has never been applied, Congress is required to call a convention to consider possible amendments to the document when formally asked to do so

alicejingli

？没人。。。

alicejingli

没有人？

TicTacc

我也不是很知道whereby的高深用法，只知道whereby 相当于by which。所以，如果用了whereby,选了C,D的话，整个句子就没有主句了。

alicejingli

oh,有道理，那是不是就是说相当于BY WHICH ，也就是定语丛句

caiqiunan

啊～菜鸟表示还是不懂啊。能不能讲详细点啊亲…求高手解救