骑行车前包哪个牌子好:He has joined the party thirty years ago.

来源：百度文库编辑：杭州交通信息网时间：2024/04/29 14:37:24

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。

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

这里应该把has去掉。因为后面有thirty years ago 意思是30年前，有确定的时间要用过去式

前边用现在完成时，后边是一个过去的时间点，与时态矛盾了。可去掉has

C for thirty years

a
把has去掉，因为有具体时间，所以只要用过去时

A不要或 C去掉,注意时间状语和时态不能矛盾!

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