英语语法he has never been to Beijing (yet还是before),我认为应该用YET,因为Y
5个回答

试用这角度来理解

never before 是‘从来未曾’

He has never been to Beijing before.

这句子是‘他从来未曾到过北京’

‘这次是他首次来到北京’

yet的意思有点著重於‘这一刻尚未’

如果要表达的意思是

‘他还未到达北京’(这里没有指明他以前曾否到过北京)

则会用 yet (此刻来说尚未0

He has not arrived at Beijing yet.

又例如

我还未做完家课

那便要用yet 而不用before了

I haven't finished my homework yet.