11.  The committee had also carried out a survey of parking problems in residential areas.

12.  The committee has carried out a survey of parking problems in residential areas.

13.  The pilot tried to turn back but the jet exploded and a large fireball ripped into a crowded residential area.

14.  The sidewalks in the old residential areas near the cemetery are set between rows of red maples.

15.  They had a large house in a pleasant residential area.

16.  To say that all motorists speed in residential areas is overstating the case.

17.  Too many people go over the speed limit in residential areas.

18.  The jet exploded, and a gigantic fireball ripped into a crowded residential area.

19.  ...a smart residential area.

20.  This is, mind you, a residential area.