大全571——没人问过D

571.        Over five thousand years ago, archaeologists have discovered that Mesopotamian cooks were preparing chicken with coriander and tamarind, just as Egyptian cooks are still doing today. C

(A) Over five thousand years ago, archaeologists have discovered that

(B) Over five thousand years ago, archaeologists had discovered that

(C) Archaeologists have discovered that, over five thousand years ago,

(D) Over five thousand years ago, as archaeologists have discovered it,（C）

(E) Archaeologists have discovered, over five thousand years ago, that

哪位能帮我解释一下D怎么错了？

是不是错在it不能指代整个句子啊？

是的。它可以指名词性从句，但是不能指整个句子。