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.
(..) One million pounds! Oh, And Um, By the way, Fire Leave my side and you'll be dead within an hour. And don't be late for dinner. I expect that my schedule be quite tight because of these activities here. I'm never late in my life. -Only early. Hmm, Hmm, Very witty, So confident even in retreat. (..)2011 Sherlock Holmes: A Game of Shadows
(..) -Anarchists suspected in Strasbourg bombing. When did you start working for the postal service? That was you back there? A Shame your activities have landed you in the gutter. A curious parcel, Who's the intended recipient? Why don't we discuss that over dinner tonight? I'm free for lunch. (..)2011 Sherlock Holmes: A Game of Shadows