Is there a plant on the table
Yes ,there is 肯定回答
There isnt a plant on the table
Are there any keys on the sofa?
Yes, there are
There arent any keys on the sofa
Is there a book in the backpack?
Yes ,there is
There isnt a book in the backpack
不明白的再问 ,如有帮助,请及时采纳!