11.   As the toga increased in social importance it also gained in size, though it clearly remained a difficult garment to wear.

12.   At night though the girls could become more easily frightened and the regular checks on the dormitories increased in importance.

13.   Because so much has been put into making such fine volumes, they have tended to increase in value year by year.

14.   Behavior that elicited a positive response from the environment increased in frequency.

15.   But at first the cities simply increased in number, grew in population and became more densely packed.

16.   But for every other fax installed in the world, your fax machine increases in value.

17.   Competition in municipal finance has increased in the past few years as the amount of new securities sold fell.

18.   Crime is rapidly increasing in our inner cities.