41.   Uneven development can change in both its pattern and its form over time.

42.   We Marked time at Po Ti Island for a day hoping that the north-east head wind would change in our favour.

43.   Weather patterns have changed in recent years.

44.   With pairs of antonyms, if one member undergoes a metaphorical extension, the other tends to change in a parallel fashion.

45.   Things can change in a heartbeat.

46.   On the surface, it appears little has changed in the Arab world.

47.   So much has changed in the sport since I was a teenager.

48.   In desperation I changed tack.

49.   Literary fashions have changed in recent years.

50.   These events have changed me in my attitude to life.