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英语改错1、--Do you know him well?--Sure.We have been friends sin

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/22 05:24:33
英语改错
1、--Do you know him well?
--Sure.We have been friends since ten years ago.
2、--Why don't you go and see him?He's arrived home for a few days.
3、--I don't know the scientist,but I already hread of him.
___Do you know him well?
__-Sure.We have been friends for ten years.
完成时的搭配:for + 一段时间; since + 某个时点,如since five o'clock
he's been home for a few days
这里arrive 是短暂性动词,不能跟一段时间.
but i have already heard of him.
完成时的基本结构是:have\has +动词的过去分词形式