感叹句变反义疑问句的方法如下：

使用否定的助动词加sb/sth

例如：

What a fine day it is today! -> What a fine day it is today, isn't it？

How fast he runs! -> How fast he runs, doesn't he？

What a long time we have been waiting! -> What a long time we have been waiting, haven't we？

如果陈述句部分是过去式，则用wasn't it

例如：

She sings beautiful, doesn't she？

一般用will you或won't you

例如：

Let's go to the park, shall we？

You're coming to the party, aren't you？

如果陈述句中出现表示否定意义的词，如few, hardly, little等，反意疑问句要用肯定式

例如：

They never come late, do they？

She can hardly speak English, can she？

neither...nor...结构本身已是否定结构，反意疑问句要用肯定式

例如：

Neither side would agree, would they？

总结：

感叹句变反义疑问句时，主要使用否定的助动词加sb/sth，并且根据句子的时态和是否包含否定词选择合适的助动词形式。对于过去式的感叹句，使用wasn't it。在某些情况下，也可以使用will you或won't you来构成反义疑问句。