Question

【题目】You can't imagine what difficulty I had______my oral English when I was a freshman.

A. to improve B. improved

C. improving D. improve

Answer 1

【答案】C

【解析】C 考查固定短语。have difficulty (in) doing sth. 做某事有困难。你难以想象我在提高英语口语方面遇到什么样的困难。用（in）动词ing形式作状语，此处省略介词in。