After five hours' drive they reached they thought was the place they had been dreaming of

问题补充：

After five hours drive, they reached they thought was the place they had been dreaming of

A. that

B. what

C. which

D. where

答案：

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。hethought是插入语。where可以引导宾语从句，但不能用作主语。theydbeendreamingof作theplace的定语从句。选B。