1. The document is an assignment paper with no rewriting of sentences. It contains 6 exercises involving verbs, prepositions, articles, synonyms, fill-in-the-blank, and sentence building.
2. The exercises test grammar skills like verb tenses and forms, use of prepositions and articles, identifying synonyms, and constructing sentences from phrases.
3. The content of the exercises does not provide much meaningful information on its own, as the focus is on the grammatical structures rather than conveying specific ideas or information.