This transition is being driven by a number of key trends  global interdependence; diverse, diffuse, and asymmetrical security threats; rapidly evolving science and technology; dramatic shifts in the age and composition of the population; important quality of life issues; the changing nature of our economy; and evolving government structures and concepts.
The changing nature of our economy is one factor that is driving the transition.
There is only one factor that is driving the transition.
Several examples of his early works convinced me that he has never done anything worthwhile.
no I haven't seen any exercise machines at all
Your body doesn't care about the source, as it synthesizes it in the same way.
Tuppence spoke warmly.
The women are sleeping.
Kendal became a city on the frontier, but was taken over since it lacked proper defenses.