a reply he decided to write again.A. not receiving 　B. receiving notC. not having recei

问题补充：

a reply, he decided to write again.

A. not receiving

B. receiving not

C. not having received

D. having not receiving

答案：

A. not receiving

B. receiving not

(答案→)C. not having received

D. having not receiving

解析：用现在分词的完成时态表示动作发生在主句动词之前。