问题补充:
You can imagine what great trouble I had his address.
A. to find
B. of finding
C. finding
D. about finding
答案:
A. to find
B. of finding
(答案→)C. finding
D. about finding
解析: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.