To that end, attorneys are expected, although not required, to contribute 25 hours a year pro bono - free - for the common good.
It is not required for attorneys to do pro bono work.
The attorneys are required to do free work for the common good.
it received no applications during the time period, and will never again receive applications.
I don't believe they should be careful.
The girl is sleeping on the couch.
People are walking
The woman is not wearing glasses while walking.
A woman and a boy are playing in a sandbox.