کاشف به عمل آمد که

Question

می خوام بگم 

"کاشف به عمل اومد که طرف، خودش ایرانیه" ...

Answer 1

http://dictionary.cambridge.org/dictionary/english/turn-out

 It turns out that she had known him when they were children.

http://idioms.thefreedictionary.com/turn+out+to+be

In the end, he turned out to be a handsome prince in disguise.

Comments

Also, "it transpired that ...", which is slightly different in register. Actually, "turn out to" sounds perfectly fine for most situations and is, therefore, in my view, a better choice.