Premise:
"Another kind of attorney volunteerism deserves a salute on this Law Day -- the tireless pro bono efforts of lawyers, whereby attorneys take no fee for legal work that enables people of limited means to get the help they need."
Hypothesis: Many lawyer in DC believe it is morally imperative to provide pro bono services.

it is not possible to tell

Premise:
"Get in, he ordered."
Hypothesis: He asked them to get out

no

Premise:
"The exhibition is tremendously popular, so be prepared for some long lines at the entrance."
Hypothesis: The popularity of the exhibition means that the lines near the entrance are very long.
yes