After five hours' drive, they reached they thought was the place they had been dreaming of
A. that
B. what
C. which
D. where
网友回答
A. that
(答案→)B. what
C. which
D. where
解析：考查宾语从句：句意：开车5个小时后，他们到达他们以为是梦想的地方。what引导一个宾语从句，作reached的宾语。what在宾语从句中作主语。he thought是插入语。where可以引导宾语从句，但不能用作主语。they'd been dreaming of作the place的定语从句。选B。