There are English books.(改为单数形式)
There are English books.(改为单数形式)
they are English books.(改为单数形式)
These are English books.改为单数形式
These are my English books.改为单数形式
They are English books (5改为单数形式)
Are there math books?改为单数形式是什么?
They're English books.改为单数形式
These are English books .(改为单数句
these are new books.改为单数形式
these are chinese books 改为单数形式
are these your books?改为单数形式
They are English cars.(改为单数形式)