Fill the gaps with an appropriate plural-form noun.

1. (to a child) Come on! Get your pyjamas on! It’s time to go to bed.
2. The of the rock concert are going to two charities.
3. The in the new concert hall are superb. I’ve never heard such clear sound.
4. The escaped prisoner is tall, dark and has a beard. His are unknown.
5. You must use or if you want to listen to your music on a train.
6. The have forbidden the import of all foreign .
7. Computer were first used in films in the 1970s.