From the text, we know that the sun is a star, isn't it?
A.Yes, it is.
B.No, it isn't.
C.Yes, it isn't.

A.Yes,
B.
B.No,
C.
C.Yes,

【参考答案】

A
解析：见第三段第一句。“The sun is really a star.”所以反意疑问句回答为[A].