题目内容：

What beautiful weather,_____?
a.is it b.isn't it c.won't it d.will it 选那个?

优质解答

题中的句子是个感叹句,完整的写出来就是：what beautiful weather it is!
其中beautiful weather是被强调的部分,句子的主语谓语是it is.而反意疑问句要求用谓语的否定形式+主语,所以是isn't it选b