this your friend?(改为复数形式) 问题二Are these your books?(改为单数形式) '求求,回答嘛

Is this your friend?改为复数形式 Is this your friend's notebook?(改为陈述句） This is my friend.(改为一般疑问句)_________ ___________ your friend? this your friend?(改为复数形式) 问题二Are these your books?(改为单数形式) '求求,回答嘛 Is this girl your friend?Is this your girl friend? is that your friend 改为复数句 is this his backpack作否定回答 Is this?your friend is what ary your parents 改为同意 两种 this is my friend改为复数形式_____ ____our____ This is my friend This ( )( )my friend(改为否定句) This is my friend 改为复数形式 this is my friend改为疑问句 this is my friend.(改为否定句) This is my friend.改为一般疑问句. That is my parent 改为复数句 Are those your grandparents 作肯定回答 This is her friend 变为否定句That is your book 改为复数句 Is she your friend?(改为复数句) is that girl your friend?改为复数 Is that your friend (改为复数句) Is he your friend?改为复数