OG11-75(指代的問題)

[三壘神童]

75. Salt depositsand moisture threaten to destroy the Mohenjo-Daro excavation in Pakistan,the site of an ancient civilization that flourished at the same time as the civilizations in the Nile delta and the river valleys of the Tigris and Euphrates.

A. that flourished at the same time as the civilizations

B. that had flourished at the same time as had the civilizations

C.that flourished at the same time those had

D.flourishing at the same time as those did

E.flourishing at the same time as those were

Ans: A

我想問的是, B選項是否因為過去完成式必須在句中能看出有時間順序的意思才能 使用,誠如這題題到(at the same time)無法比較所以刪去,是這樣判斷嗎?
D.E選項則是老師有提到會造成ambiguity 所以亦刪去

另外想藉由這題的題型問個 觀念:
1.題目中the site of an ancient civilization為同位語,我想請問它是前面所提Mohenjo-Daro excavation 還是Pakistan的同位語要怎嚜判斷??

2.答案中使用that是代替前面所提的the site 還是 ancient civilization 為什麼不會有ambiguity 的問題呢??

問題很笨,不過困惱我好久了 ,希望善心人士能指點迷津

[dibert8]

site 指 excavation; in Pakistan 修飾 excavation 看作一體就可以(其實是句意的關係)
(C) (D) (E) those 無所指代
that 的前置詞是 civilization; that 指代 site 的機會不高,因為離的遠了些,除非句意明顯要修飾它.