英语选择题---关系代词Meeting my uncle after all these years was an unforgettable moment,________I will always treasure.A.that B.one C.it D.what我自己选择的是A.不明白为何是B,填空应该是关系代词吧,one 也能做关系代

英语选择题---关系代词Meeting my uncle after all these years was an unforgettable moment,________I will always treasure.A.that B.one C.it D.what我自己选择的是A.不明白为何是B,填空应该是关系代词吧,one 也能做关系代
英语选择题---关系代词
Meeting my uncle after all these years was an unforgettable moment,________I will always treasure.
A.that B.one C.it D.what
我自己选择的是A.不明白为何是B,填空应该是关系代词吧,one 也能做关系代词吗?

英语选择题---关系代词Meeting my uncle after all these years was an unforgettable moment,________I will always treasure.A.that B.one C.it D.what我自己选择的是A.不明白为何是B,填空应该是关系代词吧,one 也能做关系代
其实很简单.
that,it,one都可以做代词.
1.that代指之前的一句话的内容.
2.it做形式代词（形式主语,或宾语),或做“它”的意思讲,置于居首,或句中
3.one,做代词时代指前一句中的某个名词,（不是一整句）本题中one代指(an unforgettable) moment.(因为我所要珍惜的是这个时刻,而不是前面这句话的内容）