If you want to express your absolute doubts about Italian, the interjection you have to learn is bring it on!
bring it on!
Oh, come on! / seriously?

Well Is the word but, However wore Is the full exclamation mark used in the following situations:
- Encourage someone to do something(wore, strength! = Come on, you can!)
- Trying to make someone hurry up (faster! = faster!)
- Do you feel that someone has said or done something wrong, stupid, or unbelievable (Come on, why are you doing this? = Oh, please, why are you doing that?)
It is in the final meaning of the word that expresses bring it on! Used.
Marco and Camilla went out. – bring it on? I do not believe!
Marco is dating Camilla. – seriously? I do not believe!

If you really have a hard time believing what the other person is saying, or want to express your concerns, you can extend A sort of sound(Big Love).
Someone saw a UFO in Turin! – bring it on! Stop talking nonsense!
Someone found a UFO in Turin! ——Oh, come on! Stop talking stupid!
I cannot connect. I think this line has been dropped. – Again? This is impossible!
I cannot log in. I think the connection is broken. – honestly? This is impossible!




