this is a beautiful cat 改成复数形式
this is a beautiful cat 改成复数形式
This is a black cat.(改成复数形式)
This is a cat.(改为复数形式)
this is a beautiful city的复数形式是什么
改成复数形式.4.This is a book.
This is my book.(改为复数形式) There is a nice cat in the tree.(改为
Is this a book 改成复数形式 Those are chairs 改成单数形式 What are these
this,that,is改成复数形式
this is an apple.改成复数形式
Is this yuor brother改成复数形式
This is my backpack.改成复数形式
This is my book.改为复数形式 There is a nice cat in the tree.改为复数形