that is my good pen friend 改成复数

that is my good pen friend 改成复数 1：is that his pen?改复数 2：she is my good friend.改为一 1.Is that his pen?(改为复数) 2.She is my good friend.（改为一般疑问句） this is my pen pal改成复数形式 英语啊,求救~下面的句子都改成复数形式This is my uncleIs that his friend?Is she That child is my good friend.(变复数）需要特别说明的是：my 用变成our吗? he is my good friend的复数句式 This is my good friend 变为复数句 He is my good friend.改成同义句 my friend is guo peng一般疑问,lt is my friend复数句,this is a pen i That girl is my friend 改成一般攻疑问句 1.This is my sister.改为复数句2.That is my friend.改为复数句