you have any trouble ____ the office building?

No, but I had a lot of difficulty ____ my work.

A. to finding, on B. in finding, in C. to find, to D. finding, with
出自:英语期末考试答案

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块