1. What a surprise.

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.