这句话为什么要加been啊 there's obviously just been a little mistake.
这句话为什么要加been啊 there's obviously just been a little mistake.
There is been a mistake
there has been...为什么要加been?
there have been a great number of accidents lately.这句话不加been
There's been a mistake 这里的There's是什么和什么的缩写?用的是什么语法?
Have you been?A place I've never been这句话中been后要不要加东西?
It's+been++a+long+time.been在这里起什么作用?为什么要用been
I've been here since 1976.这句话中been后面为什么不加to
I've been here since 1976. 这句话中been后面为什么不加to
we have been best friends for a long time中friends为什么要加s
He has been there for six months.has been后面为什么不加to?还有为什么要加fo
Have you been there?这句话是什么意思?