is that your sister变为负数句 ——　—— your sisters?

Is that ( ) your sister Is that your sister?,回答 is that your sister?应该怎样回答? Are those your sisters?Is that your sister?还是 That is your sister?Those are your sisters? is that your sister?is she your sister?yes,___ ___ yes,___ ___ is that your sister改为复数形式,怎么改? Is that girl your sister?做否定回答 Is that your sister?的肯定回答是什么 当问句为Is that your sister?时,答语为什么? IS THAT YOUR SISTER?(作否定句） is,your,that,Kate,sister连词成句 She is your sister This is your sister That is myThis is your sister That is my brotherHe is my sonNo,it isn 'tYes it is 改为复数形式 Thsae are his brothers（变单数形式） That's his friend（变复数形式） Is this your sister?(做否定回答) Those are my friends,(变单数形式) 句型转换 一空一词 略缩词算一空Dave Green watches sports on TV every day.（变否定句）Dave Green______ ______ sports on TV every day.Is that your sister(变复数)Are______ your______?Theyre English books(变单数)______ __ 英语翻译is in the photo ‘s people your sister is that in the photo ’s people your sister 英语句子单数变复数急解Thsi si my sister.what is that those aren it your books.Is this your parent 否则我明天中午又要挨饿了!随便告诉做这些题的方法! sister,Lily IS she your sister,Lucy?