11.   He said it was impossible to calculate the cost of this service because the delivery people also performed other chores like moving boxes and furniture and cleaning floors.

12.   He said employers today can make better hires by having people perform tasks and go through group interviews where they have to interact with a variety of people.

13.   Indeed, such tests are viewed as essential by other industries where people perform critical, if monotonous, inspection work, like automobile manufacturing.

14.   Now, however, people must perform the delicate balancing act of offsetting capital gains and losses.

15.   Once again we have an activity -- in this case outdoor sweeping-up -- that people could previously perform without hurting or disturbing anybody else.

16.   People performed and wrote popular music using much the same language as classical musicians.

17.   Some young people were performing Little Shop of Horrors.

18.   Such research indicates that many people perform both activities at the same time.

19.   The photos show female genitalia, people performing oral sex and other explicit subjects.

20.   The two friends said they undertook the event to prove that ordinary people can perform extraordinary feats.