He has joined the party thirty years ago.
问题描述：
He has joined the party thirty years ago.
其中,has ,joined party,thirty years ago分别为ABC
join不是瞬间动词吗，怎么一个回答也不提。
答
has去掉
join是瞬间动词 但这题的问题重点不在是否瞬间动词身上thirty years ago是过去时间状语可以表示点时刻 而 has joined 又是现在完成时 时态不一致
如果要把has放进去 则要变为He has been in the party for thirty years 由于join是瞬间动词