He has often said,one ___(be) never to old too learn.what & Why?_英语解答

He has often said,one ___(be) never to old too learn.
what & Why?

人气：295 ℃　时间：2020-05-12 11:09:51

解答

is
成语：one is never too old to learn 活到老,学到老
成语普遍规律用一般时态