Write two sentences about things that have happened to you (or make it up) with technology. Each sentence must include both a preterite and imperfect verb. Use imperfect to describe what was going on when something specific happened (preterite). Join the two clauses in the sentence with y, cuando, mientras, etc.
Examples:
Mi madre hablaba por teléfono cuando sonó mi móbil.
Mientras yo hacía mi tarea en la computatora, no pude quardar mi archivo de Word.
The verbs are underlined. Remember pude? It is poder in the irregular.