安静的纯音乐:改否定句
来源:百度文库 编辑:中科新闻网 时间:2024/07/02 03:00:20
He has already written two letter since yesterday
My mother had prepared lunch by 11;30
否定句怎么改,顺便问一下,by 11;30是什么意思
My mother had prepared lunch by 11;30
否定句怎么改,顺便问一下,by 11;30是什么意思
He hasn't written two letters since yesterday.
My mother hadn't prepared lunch by 11:30.
By 11:30 = at 11:30
He hasn't wrote any letter since yesterday
My mother hadn't prepared luch until 11:30
by 11:30, 11点半之前
在否定句不可以用这个,要换until
by 11;30是到11点半的意思
He has not already written two letter since yesterday
My mother had prepared lunch by 11;30