神马作文网They aren;t my grandparents.（改为单数形式）
They aren;t my grandparents.（改为单数形式）
No, they aren't.改为单数形式
they aren't orange oranges.改为单数形式
1.They aren't reading the books.(改为单数形式)
those aren't my cousins改为单数形式
由grandparents aren't they my组成的句子是什么?
They aren't my grandparents.的过去时态是什么?
they aren't apple trees.改为单数句?
There aren't any castles.改为单数形式
They're my cousin.(改为单数形式）
They're my uncles.改为单数形式.
No,they aren't单数