问题
选择题
.The place _____ the bridge is supposed to be built should be _____ the cross-river traffic is the heaviest.
A．which; where.
B．which; in which.
C．at which; which..
D．at which; where.
答案
答案：D
：
题目分析：the place做先行词，且在定语从句中作地点状语,所以应是where/at which. 第二空应是表语从句引导词,由句意可知表语从句中不缺主语和表语,缺地点状语,故选where.
句意：建桥的地方应该是车流量最大的地方。
点评：对于复合句引导词的考题,要注意熟记相关规则，并要划分主从句,判断从句中所缺成分。