It is a pen.改为否定句,并作肯定回答.改为一般疑问句,并作否定回答
问题描述：
It is a pen.改为否定句,并作肯定回答.改为一般疑问句,并作否定回答
答
It isn't a pen .
——Yes,it is .
Is it a pen ?
——No it isn't.
答
It isn't a pen.
Yes,it is
is It a pen?
no,it isn't
答
It isn't a pen.
Yes,it is.
Is it a pen?No,it isn't.
答
it is not a pen 否定句
一般疑问 is it a pen ? no it isn't
否定句是不能坐肯定回答的 必须得是疑问句才能回答 希望你说的更明白些