What type of grammar is prioritized in Book 3-2?

The focus on advanced grammar concepts such as the subjunctive mood and passive voice in Book 3-2 indicates that the curriculum aims to develop learners' understanding of more complex grammatical structures necessary for proficient communication. This level of grammar allows students to express nuanced meanings and elaborate thoughts, which is essential for advanced language use.

Understanding the subjunctive mood helps in discussing hypothetical situations, wishes, or desires effectively, while mastery of the passive voice is crucial for constructing sentences where the action's receiver is more important than the doer. These grammatical elements are vital for students as they progress in their language acquisition journey, providing them with tools to engage in sophisticated conversations and understand more intricate texts.

The other options may represent foundational aspects of grammar, but they do not reflect the level of complexity or depth prioritized in this particular book.