【题目】 They reached the top of the mountain__________ they could see the highway wandering before them.
A. which B. why
C. whose D. where
在线课程【答案】D
【解析】试题分析：本题考查定语从句的用法。句意:他们到达山顶,在那里他们可以看到蜿蜒的公路。定语从句先行词the top of the mountain在从句中做状语,表示地点用where,故答案选D。
考点: 考查定语从句关系词的用法。