11.   Around this time, the region becomes the battleground between the waning surges of arctic chill and increasing warmth from the tropics.

12.   As prosperous as the region is becoming, the north is not without its troubles.

13.   At this time of year, this region becomes a battleground between waning surges of arctic chill and burgeoning warmth from the tropics.

14.   But as this region became the main Soviet source of cotton, a maze of irrigation canals was built.

15.   But the election did more than underscore how solidly Democratic the region has become.

16.   But the region has become more conservative in recent years, especially with the growing influx of people moving here from Illinois.

17.   Despite the presence of tens of thousands of Russian soldiers, the region has become completely lawless.

18.   For Southerners, the mill is another sign this region is becoming a global center of high-tech manufacturing.

19.   How did it happen that, on a continent more famous for slaughter and starvation, this region has become an advertisement for hope?

20.   In fact, the regions will become so big that the company will no longer require each buyer to visit each store at least once a week.