You can hardly imagine what great trouble we had the work.A. to doB. doneC. doingD. do

问题补充：

You can hardly imagine what great trouble we had the work.

A. to do

B. done

C. doing

D. do

答案：

A. to do

B. done

(答案→)C. doing

D. do

解析：句意为：你难以想象，我们做这份工作有多么大的困难。此题考查固定结构have some/great trouble/difficulty in doing sth，在形式上作了改变。故答案应为C。