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几个英语问题..!大家帮忙下拉!

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/21 17:24:13
几个英语问题..!大家帮忙下拉!
has been to
has gone to
has been in

这三者的区别是什么 ,怎么用?
还有...already ,yet 什么区别,怎么用?
1.去了某地回来了
2.去了某地没回来
3.在某地待着
Has he ever been to Beijing?(他去过北京吗)
He has gone to Beijing.(他去了北京)
He has been in Beijing for two years.(他在北京呆了两年)
already已经(he has already been in Beijing for two years)
yet还(没...)(He hasn't been to Beijing yet.)