After three hours’ climbing they reached they thought was the place they’d been dreaming

问题补充：

After three hours’ climbing , they reached they thought was the place they’d been dreaming of .

A. what

B. which

C. where

D. that

答案：

(答案→)A. what

B. which

C. where

D. that

解析：考察名词性从句，“三个小时以后 他们到了他们认为是他们一直梦想的地方。”what 引导宾语从句并在从句中作主语，答案A。