We____(have)a PE class this Friday,shan't we?

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We____(have)a PE class this Friday,shan't we?
We____(have)a PE class this Friday,shan't we?

We____(have)a PE class this Friday,shan't we?
shall have,本来this Friday是这周星期五,表示将来的一个具体时间,用一般将来时.可以用will+do或者shall(一般将来时中当主语是第一人称,第三人称可用)+do.后面反义疑问句中用的shan't=shall not.所以保持一致,用shall +动原