the earth is not bigger than sun ,is it?
做这种类型的反义疑问句只要把回答补充完整,你就会知道哪个是对的.
回答no,it isn't (bigger than sun).翻译是：是的,它（地球）没有太阳大
yes,it is bigger than sun.翻译是：不,它（地球）比太阳大
所以 回答是 no,it isn't