Oh, my God!
Oh, damn!
What a good chance!
What a pity!
Attention! (Be attentive!)
Absolutely!
Exactly so!
Who knows!
Alas!
Really?
I can't believe it!
I hope so.
Vice versa! (Just the opposite!)
Not a bit! (Nothing of the kind!)
That's nice (sound, all right, fine) (with me).
No way!
With (great) pleasure.
It is none of your business!
That's too much!
Wonderful!
I don't know what to say!
That's wonderful (superb, marvellous)!
I feel ill (sad, disgusted).
I feel good.
My feelings are hurt.
My hope is betrayed.