since......ago能否用于现在完成时态
来源:百度知道 编辑:UC知道 时间:2024/05/28 17:12:06
since不能和ago连用
要想用在现在完成时中,只能用since + 时间段 +before
表示“自从XX前”,例如“since ten years before”自从十年前
ago只能单独使用,用在一般过去时中
since...ago 用于完成时,表示一段时间,可以与for 互换
到底有没有since......ago
since......ago能否用于现在完成时态
中考题: We ____ english since three years ago.
"for+时间段"与"since+时间段+ago"有什么关系?
Lily with her parents has been in the Greener China since three years ago.
Mary has been to New York since three weeks ago错在哪
I have arrived here since 3 years ago. 请问我这句话对不对?
Do you know him will?---Sure.We ____ friends since ten years ago.
There have been no leeters from my parents since I left home two years ago.
since +一段时间+ ago,前面主语难道必须要用现在完成时态吗