Those are my sisters改为单数形式是?

Those are my sisters改为一般疑问句 those are my sisters的单数句 Those are my sisters改为单数形式是? Those are A.two my sisters B.my two sister C.two my sister D.my two sisters These are my sisters 对划线部分提问（划线部分：sisters）.Those are my brothers 对划线部分提问（划线部分：brothers） You are my darling sisters This is his parent.改为复数 She is my cousin .改为同义句 Are those your sisters?作否定回答 these,those,brothers,sisters,and,his,are,his,are （　　) wang l my fathers sisters are my! （　　) wang l my fathers sisters are my this these that those【1】 【 】is my favorite photography.【 】is my mother,and【 】are my sisters and brothers 【2】Are 【 】 your cousins?Who’s 【 】 handsome man? （those are her sisters）改为否定句 These are her sisters（用those改写） Are those your sisters?Is that your sister?还是 That is your sister?Those are your sisters? my twin sisters are policemen对吗? These two girls are my sisters[my sisters]划线提问.谢谢These two girls are my sisters[my sisters]划线提问。谢谢 Those are_____pens.A.my sisterB.my sistersC.my sister'sD.my sisters's family的复数是?it的复数是?boy的复数是?This her brother改为复数形式是?Those are my sisters改为