--- I borrowed 10 dollars from Cathy, but she insisted that I borrowed 15 dollars from her.
--- I you the money. Why didn’t you ask me?
A. must lend
B. could have lent
C. would lend
D. should have sent
网友回答
A. must lend
(答案→)B. could have lent
C. would lend
D. should have sent
解析：考查情态动词及虚拟语气。could have done 本可以做某事而实际上没有做，根据语境我本可以借给你钱的，为什么你不问问我呢，所以选B。