Practice stem-changing verbs in the preterite. Remember none of the -AR and -ER verbs change stems in the preterite: only -IR verbs do. There are two types of stem-changes with -IR preterite verbs: e to i and o to u and only the Ud and Uds forms change. Do parts A and B on studyspanish.com.
Also, do this additional verb conjugation drill. Only one of these verbs is stem-changing, the rest are irregulars that we have previously studied.
Do up to and through "Quiz 40" in the indirect object pronoun packet that we started today.
!Que les vaya bien!