再问 GWD-23-Q2

39. GWD-23-Q2

Known today by a name they would not have recognized—Anasazi, Navajo for “ancient enemies”—the ancestors of the modern Zuni and Hopi built and then, for reasons still mysterious, abandoned the complex roads and structures of the domain they ruled a millennium ago in the American southwest.

A.      ancestors of the modern Zuni and Hopi built and then, for reasons still mysterious, abandoned the complex roads and structures of the domain they ruled a millennium ago in the American southwest

B.      reasons are still mysterious why the ancestors of the modern Zuni and Hopi built and then abandoned the complex roads and structures of the domain they ruled in the American southwest a millennium ago

C.      modern Zuni and Hopi had ancestors who, a millennium ago, ruled a domain in the American southwest where they built and then abandoned complex roads and structures for still mysterious reasons

D.      domain of the American southwest was ruled a millennium ago by the ancestors of the modern Zuni and Hopi, who built and then, for reasons still mysterious, abandoned complex roads and structures

E.       complex roads and structures of the domain that the ancestors of the modern Zuni and Hopi ruled a millennium ago in the American southwest were built and then, for reasons still mysterious, abandoned

 为什么选A   那其他选项呢？

一步到位判断法：看Known today by a name they would not have recognized。注意这里有个they表示修饰的是人所以主语必须是人。would not have recognized表示发生在过去。只能选A啦。