Those are my cousin.(改成一般疑问句并做否定回答)
----Are those my cousins?
----No,they aren't.
The letter A is black.(就画线部分提问)
----What colour is the letter A?
-------
Those are my brothers.(改成否定句)
----Those are not my brothers.
改成复数句
She is my good friend.
----They are my good friends。
She is my aunt.
----They are my aunts.
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