问题
选择题
You can't imagine what great trouble I had _______ his address.
A．to find
B．of finding
C．finding
D．about finding
答案
答案：C
题目分析：句意：你很难想象我找到他的地址有多难。做好这题，关键是知道词组 have trouble (difficult) doing sth.做某事有困难．定语从句是I have hadfinding his address，修饰先行词(great trouble)，所以答案是C．