问题补充：
After five hours’ drive, they reached they thought was the place they had been dreaming of.
A. where
B. what
C. whichever
D. whatever
答案：
A. where
B. what
C. whichever
D. whatever
解析：考查宾语从句。Reach是及物动词后面要接宾语从句，what引导起宾语从句，并在句中做主语。句意:驱车5个小时，他们到达了他们一直梦想到达的地方。故B正确。
