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

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 把下列句子变为复数句1.I am a girl2.He is my cousin3.She is at school4.This is his picture5.That is an orange jacket 把下列句子变成复数形式.This is a watch. this is not my umbrella.把句子变成复数形式 把下面的句子面呈复数形式She has a red skirt. This is an apple 变为复数句子 this的复数形式 把like和play变为复数形式 把下列单词变为复数形式 把下列单词变为复数形式mother father brother sisterfriend grandfather grandmother总结名词变为复数形式的规则：不规则化 this—— that——is——如何介绍自己的家人. This is a bus.改为复数形式的句子 This is my dictionary(改为复数形式的句子） This knife is his.怎么改复数形式的句子? 一些英语单词的复数形式请帮我把下面的英语单词写成他的复数形式1.his 2 .him 3.bus 4.that 5.cap 6 .my 7.me 8.shoe 9 .box 10.sheep 11 .this 12.watch 13.knife 14.deck 15.city 16.boy 17.she 18.child 19.I 20.woman 把句子改为复数形式 this is a boy is schoolbag 变为复数形式 What is this It is a photo.变为复数形式 把下面的句子变成复数形式(1)This is a book.(2)That is a yellow pencil.(3)He is a good boy.(4)She is playing on the computer.