ruler的复数即用啊

ruler的复数即用啊 ruler的复数形式! baby、class、sheep、ruler的复数是什么? 谁知道ruler的复数怎么写? 这几个单词的复数形式怎么写book,eraser,ruler,pencil,tape It is his ruler. 先把它改成形容复数的句子,再改成疑问句. 谢谢! quilt,pen,ruler,scholl,card,notebook,daughter,picture的复数形式 quilt,pen,ruler,school,card,notebook,daughter,picture的复数形式. bus bench brush kiss chuch dish ruler peach这些单词的复数形式. book,pen,ruler,boy,radio,zoo,nose,face,monkey,watch,这些单词的复数怎么写? Is it your ruler?改为复数句 ls this your ruler改为复数句 That is a ruler作复数句 this is a ruler 改为复数 it's a ruler?改复数句 That is ruler改为复数句 this is a ruler.改复数 变复数 Let me see your ruler.