yes,it is.变复数

yes,it is.变复数 Is this your pencil?Yes ,it is.变复数 （单数句子变复数） 1.—Is that your family? —Yes,it is. Yes,it is 的复数形式 yes,it is改复数句 Is he a boy Yes,he is.(变复数) Is it your radio?Yes it is 改为复数 It is an orange,变复数 What color is it怎样变复数? Is it a cat?要求变复数 It,is,on,the,sofa.变复数 it is my foot 变复数 It is my boot .变复数 改错here is nice backpack This is my book（变复数句）Those are his parents (变一般疑问句并做否定回答）yes it is（变复数句）就今天,越快越好! 变复数句1.This is my booy2.Is that his uncle3.Is she your friend4.Yes,it is5.This is my pencil case Is this a plane?yes,it is 改复数句 Is that your parent? Yes it is改为复数句 Yes,I am.{变复数}