2. How amazing.
3. Incredible.
4. That's extraordinary.
5. Fancy that.
6. It's hard to believe.
7. Are you serious?
8. You are pulling my leg, aren't you?
9. I can't believe my eyes.
10. I'm very surprised to hear that.
11. It can't be.
12. My God!
13. Who can have thought of it?
14. The news comes as a surprise.