英语反意问句This is called a chemical change这个句子变反义问句 是 isn't it 还是 didn't it?

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英语反意问句
This is called a chemical change
这个句子变反义问句 是 isn't it 还是 didn't it?

明显是 isn't it ,called意思是“所谓的”,即“这就是所谓的化学改变,不是么?”,called并不是这个句子的谓语.

isn't it

肯定是 isn't it ?因为前面有This is ,所以后面也要和前面相对应。
祝你的英语越来越好

isn't

isn't,因为前句是被动语态,所以反义疑问句的疑问词应与被动语态的助词一致。希望我的回答对你有用,加油啦!

isn't