Do you know the trouble I have the work?A. to do B. doingC. do D. done

问题补充：

Do you know the trouble I have 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：考查短语： have trouble (in) doing 在某方面有麻烦，题中含有一个定语从句，先行词为the trouble，从句中I have 后缺少宾语，所以关系代词省略了。句意：我在工作中有麻烦你知道吗？所以选B。