the twins are in class three改为一般疑问句并作否定回答

问题描述:

the twins are in class three改为一般疑问句并作否定回答

一般疑问句
Are the twins in class three?含有be动词的一般疑问句把be动词放在句首
肯定回答:Yes,they are.
否定回答:No,they aren't.