hard you will succeed. A. Having workedB. Being worked C. To workingD. Working

问题补充：

hard, you will succeed.

A. Having worked

B. Being worked

C. To working

D. Working

答案：

A. Having worked

B. Being worked

C. To working

(答案→)D. Working

解析：现在分词作条件状语，与句子主语之间是主动的关系。