I don't know what to do.Do you have any _____(idea).用单数还是负数

I don't know what to do.Do you have any _____(idea).用单数还是负数
I don't know what to do.Do you have any _____(idea).用单数还是负数

I don't know what to do.Do you have any _____(idea).用单数还是负数
它做为“主意,意见,信念”为可数名词.作为”印象,感想,模糊的想法,想象”等为不可数名词”.在这里是想法的意思,是不可数名词.
any用于否定和疑问,后面接可数名词的复数或者不可数名词.

两种都有见过 感觉都行啊

idea (单数)
any 用於否定句和疑问句, 所以用单数.

单数