将下列名词单数变成复数CUP class bed friend key ,map boy

问题描述:

将下列名词单数变成复数
CUP class bed friend key ,map boy

cups,classes,beds,friends,keys,maps,boys

cups classes beds friends keys maps boys

CUP- cups class- classes bed - beds friend - friends key - keys ,map - maps boy-boys
不明白的再问哟,请及时采纳,多谢!