Meeting my uncle after all these years was an unfotgettable moment,_______I will always treasure.

Meeting my uncle after all these years was an unfotgettable moment,_______I will always treasure.
A.that B.one C.it D.what
不懂为什么要用one..
Equipped with modern facilities,today's libraries differ greatly from________
A.those of the past B.the past C.which of the past D.these past
为什么B不可以?
I will never know that was on his mind at the time,nor will_______
A.anyone B.anyone else C.no one D.no one else
不懂答案的意思.
We had three sets of garden tools and we seemed to have no use for______
A.none B.either C.any D.each
为什么A.D不可以?
No progress was made in the trade talk as neither side would accept the conditions of________
A.others B.the other C.either D.another
----Victor certainly cares too much about himself.
----Yes,he's never interested in what _____is doing.
A.no one slse B.anyone slse C.someone else D.nobody else
好像和上几题一样的问题.没见过的题型