When we think of trees at Christmas, there is that immediately springs to mind－the evergreen tree beautifully decorated.
A. the one
B. that
C. it
D. one
网友回答
A. the one
B. that
C. it
(答案→)D. one
解析：考察代词用法。The one代指特指的可数名词单数， that代指特指的可数名词单数或者不可数名词 it代指上文提到的同一个事物 one代指泛指的可数名词单数，此处代指a tree
句意为，当我们想到圣诞树的时候，有一棵树立刻进来我的脑海。就是那颗装饰的很漂亮的常青树。