You don’t know about the difficulty I had ______the work then at all.

题目

You don’t know about the difficulty I had ______the work then at all.
A. done B. to do C. for doing D. in doing
请问高人这题该选什么?为什么?
谢谢!
为什么呀?能说说理由吗?

答案

D
the difficulty in doing sth 可以看做是一个词组,意思做某事的难处
其中 I had是状语修饰the difficulty,作用就是强调我的工作很难做.做题目的时候可以把I had拿掉
其中in+dong sth/sth 意思在某方面
举例
the difficulty in looking for a job 找工作的难处