isn't的复数形式

isn't的复数形式 no it isn't 的复数形式 isn't的复数形式是什么? isn't的复数形式是怎样的? It isn't her knife.的复数形式. This isn't my dictionary变成复数形式怎么改?七年级的英语! There isn't any gas station here.改为复数形式的肯定句. This isn't my brother 变复数形式 this isn t my grandparent改为复数形式 that isn't a watch改为复数形式? That isn't my CD 改成复数形式 Her uncle isn't a postman.改复数形式 Is that his pencil?No,it isn't.改为复数形式 Isn't it?有没有复数形式,有的话那是什么 按要求写单词：isn't(完全形式) four(同音词）“class（复数） T-shirt的复数形式是什么 ）这些英文句子的复数形式 1.This isn't her handbag.2.Is this your coat?3.Is her passport red?4.Is my coat smart? 把下面的句子变为复数形式1.This is my sister2.That is his brother3.what is that4.Ls this your friend5.that isn't a book