1. a) The new skates were presented to me yesterday.
b) Yesterday I was presented with new skates.
2. Exercise books have just been given out to pupils.
3. Dinner is being cooked for her family now.
4.Flowers were being bought for Granny while a tie was being chosen for Grandfather.
5. Tickets will be booked for you by next Friday.
Но более грамматически правильно: Tickets will have been booked for you by next Friday.
6. Fives are brought from school every day.
7. Letters were sent to friends by the evening.
Но более грамматически правильно: Letters had been sent to friends by the evening.
8. Tomorrow the poster will be shown to us.