问题
选择题
After five hours’ drive, they reached they thought was the place they’d been dreaming of.
Athat Bwhere Cwhich Dwhat
答案
答案：D
D引导词引导宾语从句，作及物动词reach的宾语，又因引导词作was的主语（they thought为插入语，对句子结构不产生决定性的影响），所以引导词要用what。