1.The balloons had all been blowing / blown up before the carnival started
2.The bananas haven't / aren't all been eaten yet
3.The lorry isn't been/ being driven by the gorilla
4.A young boy was/has just taken a balloon from the astronaut
5.A prize is going to have/be given to the person in the best fancy dress
6.The prize might not be awarding/awarded to the clown
7.Has/is the lorry been decorated well?
8.Can songs be sung by/with people in the crowd ,too?