has never been heard 是现在完成时的被动结构.
现在完成时的被动结构构成为:has/have+been+动词的过去分词.如:
The work has not been done by him.
这项工作他还没有完成.(即工作没被完成.)
如满意,请采纳为“满意答案”.祝进步!
has never been heard 是现在完成时的被动结构.
现在完成时的被动结构构成为:has/have+been+动词的过去分词.如:
The work has not been done by him.
这项工作他还没有完成.(即工作没被完成.)
如满意,请采纳为“满意答案”.祝进步!