I am sorry forget ________you________it last time.It does not matter.A.to tell ,about

题目

I am sorry forget ________you________it last time.It does not matter.A.to tell ,about
B.telling,about C.to tell ,on

答案

A to tell ,about
非常抱歉上次我忘记告诉你关于（某事）的情况了.
forget to do sth.忘记去做某事
forget doing sth.忘记做过某事