Which sentence contains a past progressive verb form?
a: pablo used the computer.
b: pablo has been using the computer.
c: pablo is using the computer.
d: pablo was using the computer.

there are many cases in the crucible where propaganda is present, the types of propagandas that are shown are: bandwagon, testimonial, transfer, and card-stacking. the crucible is mainly focus on the ancient beliefs that people from towns had, if someone didn’t follow the rules they would be punished.

one of the central themes of edward abbey's work has been his staunch opposition to the glen canyon dam on the colorado river that created lake powell, destroying stunning scenery and wildlife habitat, endangering many rare species of fish and animals, and also irreparably destroying many important archaeological sites which provided information about the early inhabitants of the united states.