41.   Human conversation occurs over a cacophony of squawks and shrieks and whistles reminiscent of an amplified sound track of a Tarzan movie.

42.   Icing will also occur over parts of the central Great Lakes States.

43.   In ancient America, the changes were not relatively quick, as had been thought, but seem to have occurred over a period of several thousand years.

44.   In fact, some of the most intense battles in book publishing occur over the contents of a prepublication excerpt.

45.   In the past, such explosions often escaped notice because they usually occur over the sea or uninhabited lands.

46.   In the United States, he said, those meetings will occur over the next few weeks.

47.   In this business, we must compile a list of the top stories that occurred over the past calendar year to maintain our credentials as serious journalists.

48.   In the horse-trading that occurred over the last month, the Democrats extracted sacrifices from Rowland.

49.   Inevitably, changes occur over time.

50.   Indeed, the biggest battle last season occurred over a Colorado native.