I told Sally how to get here, but perhaps I for her.
A. had to write it out
B. must have written it out
C. should have written it out
D. ought to write it out
网友回答
A. had to write it out
B. must have written it out
(答案→)C. should have written it out
D. ought to write it out
解析： “ought to / should have+过去分词”表示后悔当初该做但却没做某事。“…也许我本该把详细地址写给她的。”