—Here you are at last! What kept you so long?
—Sorry, I’m late. But do you know what great difficulty I have your house.
A. found
B. finding
C. to find
D. for finding
网友回答
A. found
(答案→)B. finding
C. to find
D. for finding
解析：句意:--你终于来了，什么事使你用这么长的时间？--对不起，我来晚了，但是你知道我找到你的家有多困难。这里是感叹句型，被感叹的是名词difficulty，所以用的是what，这里是短语have difficulty （in）doing，in可以省略，故选B。