21.   Things are changing, but at a glacial pace.

22.   Things are gradually changing.

23.   Things have also changed for the employee who receives an expense account.

24.   Things have changed a lot since I was a child.

25.   Things have changed dramatically over the last few years.

26.   Things have changed quite dramatically in the past few months.

27.   Things have changed since the last time you were here.

28.   Things can change in a heartbeat.

29.   Things have changed quite a bit.

30.   Over the past ten years things have changed.