Question

请教英语单选题

15.Now that she is sick with cold,I feel I _____ have stopped her from going out in the rain.
a,could
b,might
c,must
d,ought to
说出理由，谢谢。

Answer 1

选d.ought to
ought to/should have done 本应该做某事而实际没有做

Answer 2

本该但却没做，用ought to