Could, mustn´t or needn´t - English test

Chose could, mustnīt or neednīt.

1. They win a camera in the competition
2. Today is Sunday. The pupils go to school.
3. The class go to the museum. They don´t have enough money!
4. Look at the sign. You take your dog in there.
5. The boys go skateboarding but they don´t have time.
6. you pass the butter, please?
7. We get on the wrong train.
8. You take an umbrella. The sun is shining.
9. The kids eat all the chocolate or they will be ill.
10. We have a picnic near Tower Bridge. That´s a good idea!