The students are cleaning the classrooom 改为一般疑问句和否定回答

The students are cleaning the classrooom 改为一般疑问句和否定回答
The students are cleaning the classrooom 改为一般疑问句和否定回答

The students are cleaning the classrooom 改为一般疑问句和否定回答
Are the students cleaning the classrooom ?
No,they aren't.

Are the students cleaning the classroom?
No, they aren't.

Are the students cleaning the calassroom?
----No,they aren't.
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