153. A recording system was so secretly installed and operated in the Kennedy Oval Office that even Theodore C. Sorensen, the White House counsel, did not know it existed.
(A) A recording system was so secretly installed and operated in the Kennedy Oval Office that
(B) So secret was a recording system installation and operation in the Kennedy Oval Office
(C) It was so secret that a recording system was installed and operated in the Kennedy Oval Office
(D) A recording system that was so secretly installed and operated in the Kennedy Oval Office
(E) Installed and operated so secretly in the Kennedy Oval Office was a recording system that

E awkwardly inverts the order of the subject and predicate in the main clause and thus cannot be logically connected to the remainder of the sentence .

这句话应该怎么理解啊？
是因为E中这样的倒装是不允许的，还是因为that在system之后，有修饰system之嫌？

so that， such that 引导的句子中可以倒装吗？
谢谢！

E的错误在于将主语和宾语的位置搞错了,因为在主句后有一个it, it指代的应该是a recording system而不是Installed and operated so secretly.

我想此句的重点在于考it的指代,即"前后一致".

我写错了。你说得对！


我觉得一般来说so...that和句子的倒装没有必然的联系，so...that应该可以用在倒装句中。
我通常凭感觉做题，感觉如果E改成了So secret a recording system was in the Kennd
edy Oval Office that和原句的含义就一致了，但是少了两个含义：installation 和operation,如果加上这两个词用A是最清楚的。

我们可以讨论讨论 ：）

能不能这样倒装的？
So secretly installed and operated in the Kennedy Oval Office was a recording system that even Theodore C. Sorensen, the White House counsel, did not know it existed.

语法上是可以的， 解决了secretly 的修饰问题，但是在有a 的情况下，还是不能选它，因为og说没有特别的原因不能改变原来的语序表示强调。就是说，假如碰见改变原句语序的，十有八九原句对。