Use this pair drill to practice subject pronouns and the present tense conjugation of SER.
Print the page in color so that you have enough for each student in your class (if you have 24 students, print the page 12 times). Cut each page in half. Put students in pairs giving each person in the pair half of the sheet. Each partner knows what the other should say and can correct his/her partner if necessary. When students get to the bottom of the sheet, they switch papers and do the drill again. In my classroom, students must repeat the drill until they are instructed to stop.
This pair drill is included in my bundle of Spanish I Pair Drills.