一道英语题 急用

twelve(序数词)twelfth

orange(复数) oranges

man(复数) men

friend(形容词)friendly

find(过去式) found

seven(序数词) seventh

box(复数) boxes

nice(比较级) nicer

son(同音词) sun

we(反身代词) ourselves

their(名词性物主代词) theirs

family(复数) families