Choose the correct option to complete the sentences.

1. Most of our teacher / teachers take the register at the beginning of each lesson.

2. None / Any of the books she wanted me to buy was available.

3. We've run out of coffee – there isn't any / some left.

4. We've made a lot of sandwiches for our guests, but only few / a few people turned up and we ended up with too much food.

5. Either / Both of my parents went to the cinema, I'm home alone.