您好！ 改成一般疑问句：Is everything ready now? 肯定回答：Yes,it is. 否定回答：No,it isn't. 希望能帮到您！谢谢！
Is everything ready now?
Yes, it is.
No, it isn't.
Is anything ready now?
Yes,it is .
No, it isn't .
Is everything ready now？
yes it is
no it is not
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