Do you kown the difficulty I had___the work?Do you kown the difficulty I had___the work?A.finished B.fininshing C.to finish D.to be finished

B

答案为B
这句话改为陈述句为：You konw the difficulty I had finishing the work
在这个句子中，I had 是对the difficulty 的定语，又根据 I have the problem/difficulty doing sth. 这个词组，原句应为 I have the difficulty finishing the work .故 应该选B

B
把这个句子变化一下：
I had difficulty finishing the work.
have difficulty doing sth.做某事有困难,固定句型
再转化成宾语从句：
Do you know the difficulty I had finishing the work?

have difficulty (in) doing ....
b