They have some English books改为单数形式
They have some English books 改为单数形式
They have some English books改为单数形式
they have some ehglish books 改为单数形式
they are English books.(改为单数形式)
They're English books.改为单数形式
They have some erasers改为单数形式.
They have some oranges(改为单数形式)
They are some English books.改为单数句
They are English books (5改为单数形式)
we have some english books 改单数形式
They are some English girls改为单数形式是什么?
These are English books.改为单数形式