This document contains a worksheet with exercises to practice grammar concepts related to the verb "to be", questions with "where", and possessives. The worksheet has three sections:
1. The first section contains conversations to complete with the verb "to be" in affirmative and negative forms to indicate locations of classmates.
2. The second section focuses on using "this" and "these" correctly with singular and plural nouns and adding the correct article ("a", "an", or no article) depending on if the noun is singular or plural.
3. The third section practices questions with "where" to ask about locations of objects and uses possessives like "Mario's" or "the students'"