Complete the sentences with both, neither, all, none:
1. Helen's mum and dad are .... art teachers.
2. .... the students in my year have to study design technology.
3. I've got two mobile phones but ... of them is working at the moment!
4. It was such a difficult exam that .... of the students passed.
5. I tried two pairs of shoes but .... of them was the right size.
6. Claudia and Irena ... speak Spanish very well.
7. He spoke so quietly that .... of the people in the audience could hear him.
8. My sister keeps .... her SDs in order.