问题
选择题
The river ____are covered with trees is very long
A．which banks
B．of which banks
C．whose the banks
D．the banks of which
答案
答案：D
题目分析：句意：两岸种满了树的那条河很长。名词/代词+of+whom/which可引导非限制性定语从句,表示部分与整体的关系。C应是whose banks才对。故选D。