Помогите пожалуйста с упражнением буду очень благодарен)

1 B. Yes, and I have already bought the DVD too2 A. Has your brother gone to university?2 B. Yes, and I have already moved into his old bedroom3 A. I love their music but I have not bought their new CD yet.3 B. Well, don't buy it! I have already listened to it and it's awful.4 A. Dias? Have you already done your homework?4 B. Nearly. I have finished the Maths but I have not started the Geography yet.