These are our books.(改成单数)
These are our books.(改成单数)
These are our books改成单数
these are new books.改为单数形式
these are chinese books 改为单数形式
These are English books.改为单数形式
are these your books?改为单数形式
These are English books .(改为单数句
These are your books.(改为单数)
These books are yours(用hers改成选择疑问句)
these are some arms(改成单数句)
These are our sheep. (改为单数句子)
those are her books 改成单数