This is my sister(变为复数句)
This is my sister(变为复数句)
This is my sister 改为复数句
This is my pencil(变为复数句)
This is my good friend 变为复数句
Is that his sister?变为复数句
1.This is my sister.改为复数句2.That is my friend.改为复数句
This is my sister.改为复数形式、
IS this your sister?(改为复数句)
This is his sister改为复数句
Is this your sister的复数句?
this is a bus.【变为复数句】
What is this?变为复数句___________________________.