Salt deposits and 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 flurished 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
(D)看完整比較的內容: an civilization flourishing at the same time as those did in the Nile Delta... did不存在可能指代的verb(flourishing不對,如果是A項的flourished可以) (E)were前面也是沒有指代,句子中沒有出現過除了were以外的be動詞。
A little oddly,the GMAT insists that any "new copy" that or those agree in number with the previous version. If you must change number,repeat the noun.
Wrong:Her company is outperforming THOSE OF her competitors.
Right:Her company is outperforming THE COMPANIES OF her competitors.