Question

I regret _____ you that my sister regretted _____ out with y

Answer 1

D

考查固定用法。Regret to tell sth遗憾要做某事（动词往往是tell,say）；regret doing遗憾做过某事；句意：我很遗憾的告诉你我的姐姐后悔和你外出。