Although the old man was death, he still fought with the disease bravely.
A. at the end of
B. on the top of
C. at the edge of
D. on condition that
网友回答
A. at the end of
B. on the top of
(答案→)C. at the edge of
D. on condition that
解析：句意:尽管那位老人身处死亡的边缘,却仍然在勇敢地同疾病斗争。at the edge of“在……的边缘”,符合句意。at the end of“在……最后”;on the top of“在……顶端”;on condition that“在……条件下”,后接从句。
所以选C。