Do you know that I have trouble the work?A. to doB. doingC. doD. done

问题补充：

Do you know that I have trouble the work?

A. to do

B. doing

C. do

D. done

答案：

A. to do

(答案→)B. doing

C. do

D. done

解析：考查词组：have trouble/difficulty（in） doing做…有困难，句意：你知道我做这个工作有困难吗？选B。