I wonder how many years ago____________.A、did your father retire _英语解答

I wonder how many years ago____________.
A、did your father retire B、your father retired C、has your father retired D、your father has retired

人气：384 ℃　时间：2019-11-22 07:32:57

解答

B.your father retired
ago表示了后面必须描写一件发生过的事,已经在当时完结了.
然而后面两个选项都是描写了一种持续的状态.