The police are now monitoring criminal/gang/drug 'activity' in the area.
There has been an increase in the city's (level of) economic 'activity'.
The instruments are used to detect volcanic 'activity' on the island.
(..) technical row before breakfast. Full course load. Studying. Another three hours in the tank and then studying. I'm not sure how we missed it. How much activity was there on this thing? Twenty-two thousand page requests. Twenty-two thousand? Cam, this guy hacked the facebook of seven houses. (..)2010 The Social Network