2. Open the brackets using the necessary tense form. 1. I __________________ already (write)______________________ a letter to my friend. 2. You ________________ already (open)______________________ the window. 3. He _________________ (not call) his friend the day before yesterday . 4. They ________________ (buy) a new computer yesterday. 5. Yesterday at six o’clock we (play)______________________________ football. 6. He _____________________________(phone) his friend before he went to the theatre. 7. When she received a telegram her brother ___________ already (leave)________________.