This is an exercise designed for native Spanish speakers as is evident in the translation section. Don't underestimate the importance of numbers in your lesson planning. Many of the plurals are exceptions yet rather common. Formation of questions is vital when learning another language, one needs to understand them in order to answer and everybody needs to ask them to achieve desired results. This course emphasizes question use extensively, this is just the beginning.
A special surprise! Students will be able to practice the past tense under the guise of common prepositional phrases giving them confidence early in the course to use verbs correctly. The last section of reflexive pronouns is just a simple exercise used to encourage more practice. Remember practice makes perfect so make sure students practice everything out loud!