they aremy sisters.___ ___sisters?______怎么做改为否定句

they aremy sisters.___ ___sisters?______怎么做改为否定句
they aremy sisters.___ ___sisters?______怎么做
改为否定句

they aremy sisters.___ ___sisters?______怎么做改为否定句
they are my sisters
否定句:They aren't my sisters.
疑问句:Are they my sisters?
否定回答:No,they aren't.

是否定疑问句吗？
Aren't they my sisters?

Are they your sisters?