按要求完成下列句子1.Th is my brotyher改为复数形式.2.She's my sister .对my si

1.This my brother改为复数形式.
2.She's my sister .对my sister 提问
4.They're my grandparents对my grandparents提问,
5.Are those your parents?做否定回答6.Those are oranges改为单数形式
(1) These are our brothers
(2) Who is she
(3) Who are they
(4) Yes,they are
(5)This is an organge