is that your friend 改为复数句 is this his backpack作否定回答

is that your friend? is that gril your friend 改复数 is that girl your friend?改为复数 is your friend that brother's Is that your friend (改为复数句) Is that your cousin?(用friend改为选择疑问句） Is that your friend?(改为复数句） Is that your girl friend 改同义句 .Can your friend guess the word that is different是什么 Is that your cousin?(用friend改为选择疑问句） Is that your cousin or your friend?要加2个your 为什 Is that your cousin?(用friend改为选择疑问句） Is that your cousin or your friend?要加2个your Is this?your friend is It is very good that your friend speak your English 翻译中文? is that your new friend?否定回答,what‘s your father like?怎么回答?介绍下, For your friend is my friend是什么意思? is that your friend 改为复数句 is this his backpack作否定回答 写出下例句只的复数形是 That is my book Is this your cousin?、 Is she your friend? Is this girl your friend?Is this your girl friend?