This is my book.改为复数形式 There is a nice cat in the tree.改为复数形式 Those are rulers 单数形式
问题描述:
This is my book.改为复数形式 There is a nice cat in the tree.改为复数形式 Those are rulers 单数形式
答
These are my books.
There are nice cats in the tree.
That is a ruler.