新概念中有一句macaroni has been grown in this area for over six hundred years
问题描述：
新概念中有一句macaroni has been grown in this area for over six hundred years
请问has been grown 是什么时态,假如是现在完成进行时的话不应该是has been growing?
答
has been grown是现在完成时,has been growning是现在完成进行时不是