The document appears to be corrections for an exam taken on August 30th, 2007. It provides answers to multiple choice and fill-in-the-blank exercises focusing on the use of past progressive (continuous) tense in Portuguese, also known as the "imperfeito do indicativo". The exercises test the use of "estar + ger炭ndio" constructions to describe actions that were happening, ongoing or in progress at a specific time in the past.