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

问题补充：

After three hoursclimbing，they reached they thought was the place theyd 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：考生误以为是地点状语从句，误选C.where。而reached是及物动词，后边接的是宾语从句，宾语从句除去插入语they thought后缺主语，所以应选what。