在现在完成时态 since 引导的句子中,主句的谓语动词必须用持续动词吗?
问题描述：
在现在完成时态 since 引导的句子中,主句的谓语动词必须用持续动词吗?
He has left here since two years ago.
He has been away since two years ago.是两个都对,还是有错?
答
He has left here since two years ago.He has been away since two years ago.是两个都对,还是有错?都不对,因为有了ago 就不能用since ago 表示用过去时,since 是现在完成时标志修改后如下 ：He has left here sinc...