单数句子改为复数 —Is that your family?—Yes,it is.—Who is he?—He is m

单数句子改为复数 —Is that your family?—Yes,it is.—Who is he?—He is m （单数句子变复数） 1.—Is that your family? —Yes,it is. 1.将下列单数句变成复数句 1.Is that your family?2.Yes,it is.1.Who is he? Who is he?改为复数 —Is（ ）your sister?—Yes,( ) is.A.this;he B.that;it C.she;it D 把下列句子改为复数形式 This is my key That is your photo He Is that your headmaster?用Yes,he is.回答还是Yes,it is. who is he he is my grandparents改为复数句 Is it your radio?Yes it is 改为复数 Is that your brother? Yes,﹍﹍. PS：是填 it is,还是填 he is. ? Is he your friend?改为复数 "Is he your brother?的回答是Yes,it is.还是Yes,he is?如何区别?