As the saying goes,one is never too old to learn.After he ______ ,he will devote himself to gardening.
问题描述：
As the saying goes,one is never too old to learn.After he ______ ,he will devote himself to gardening.
A.retired B.has retired C.will retire D.had retired 为什么?
答
A哦,因为退休是瞬间动词,不可能用完成形态.
有什么不懂的可以追问我~望采纳~答案为B抱歉额，如果是B的话就是在他已经退休以后他会把自己的毕生奉献于园艺