Theplaceatwhichthebridgeissupposedtobebuiltshouldbethecross--rivertrafficistheheaviest.AwhereBwhichCinwhich答案选的是where,我想知道为什么,这个空还能添什么我的想法是theplace就在thecross的地方

Question

The place at which the bridge is supposed to be built should be __ the cross--river traffic is the heaviest.
A where B which C in which
答案选的是where,我想知道为什么,这个空还能添什么
我的想法是the place就在the cross 的地方，即the cross is in the place，所以用where。这个想法对吗？

Answer 1

at which一直到built都是定语,修饰the place.shoud是助动词,be是谓语,where一直到heaviest是表语从句,表语从句属于名词性从句,因此可以理解为一个名词.这句话的主干是the place should be+where引导的表语从句.整句...