This activity should be done with a partner and should be done solely in Spanish. On their own, each student chooses 5 activities that they have completed in the last week, month, year, etc. When each student is done, they turn to their partner and try to guess which activities their partner chose/completed. They do this by asking the question in Spanish, using the tú form. The responder must answer in a complete preterite sentence using the yo form. Side 2 of the worksheet is used to keep track of yes's and no's. I make sure that partners bounce back and forth. At the end, each students records their partners activities using the él/ella/Ud. form. This could be tailored to present tense also.