11.   Yet model operas have become popular crowd pleasers and are performed with increasing regularity as the Cultural Revolution itself fades into the past.

12.   In an age where the world seems to be getting smaller, companies able to span it with greater ease are cropping up with increasing regularity.

13.   In the past few years, clashes between fans of rival Brazilian clubs have occurred with increasing regularity.

14.   The idea for securing fiscally sound policies by countries that join a single currency is being bandied about by German policy makers with increasing regularity.