I the poor rabbit, but I didn’t have the right drugs with me at that moment.
A. could save
B. had saved
C. could have saved
D. saved
网友回答
A. could save
B. had saved
(答案→)C. could have saved
D. saved
解析：句意，我本可以救那只可怜的兔子，但是在那个时候，我没有带合适的药。could have done 表示过去本来可以做的事没做，故选C。