Fifty people were turned away for various medical reasons. (Why)
The event concluded three hours after the scheduled close. (How many)
There were plenty of chairs and tables. (What)
Many people brought their own books, magazines, and newspapers. (What)
The first thing donors had to do was fill out the donor registration and screening form. (What)
Donors waited until a nurse called them to her desk. (Who)
The average adult body contains 8 to 12 pints of blood. (How many)
It takes your body 2 to 4 weeks to replace one pint of blood. (How long)
Most donors filled up the pint bag within 5 to 10 minutes. (How long)
Before leaving, donors received a sheet of instructions. (What)