将下列句子改为复数句1this is hs sister 2.that is my brother 3it is a b

将下列句子改为复数句1this is hs sister 2.that is my brother 3it is a b 1.This is my sister.改为复数句2.That is my friend.改为复数句 This is my sister 改为复数句 将下列句子变成复数形式：This is my sister. This is my sister a什么that is my brother? 我英语卷子 That is my pencil 改为复数句 This is her brother改为复数句 Is th 1 That is my sister.改为一般疑问句 2 That is her brother.改为否定句 把下列句子变为复数.This is a watermelon.It is yellow shirt.That's my 写出下列句子的复数形式 ：This is a book That is my parent Yes it is Is t Hello,Tony!_______ my brother and sister A.This is B.That is 英语 句子转换1 This is a watch.改为否定句2 This is my pencil 变为复数句3 It' This is my sister,s skirt.改为复数句子