1.  A curious thing has happened here.

2.  But the curious thing was that the idea had somehow and much against his will taken root in his consciousness.

3.  Such a curious thing for an established and respected elderly gentleman to do, now that she came to consider it seriously.

4.  The curious thing is why a university made Mr Jeffries head of an academic department in the first place.

5.  When George came back he did a curious thing.

6.  After he retired, a curious thing happened.

7.  The curious thing was that the lake was not marked on the map.

8.  Now the curious thing was that if you looked at the early atmosphere, the molecules in that were the molecules that we expected to see in interstellar space.

9.  As the corn flake celebrates its hundredth anniverary, it is clear that a curious thing has happened to our morning crunchies.

10.  A curious thing happened to me last week.