Choose the present perfect or past simple: I _________________ (see) three

Choose the present perfect or past simple: I _________________ (see) three police cars this morning (its still morning). After he _________________ (arrive) home, he _________________ (unpack) and _________________ (go) to bed early. A: Whats wrong? B: I _________________ (break) a glass! My grandparents only _________________ (know) each other for a few months before they _________________ (get) married. I _________________ (be) in London for three years. I love it here. We _________________ (see) Julie last night. He _________________ (be) a teacher before he _________________ (become) a musician. When the boss _________________ (walk) into the room, we _________________ (know) someone was going to get fired. The children _________________ (break) a window in the school last week. He _________________ (see) that film last year. Помогите пожалуйста! Заблаговременно спасибо))