such a heavy loss，the businessman didn’t have the courage to go on.
A. Having suffered
B. Suffering
C. To suffer
D. Suffered
网友回答
(答案→)A. Having suffered
B. Suffering
C. To suffer
D. Suffered
解析：
句意为：遭受了如此严重的损失之后，那位商人没有勇气继续做生意了。因为“遭受重创”先发生，故用现在分词的完成式。