Complete the sentences with the correct past perfect form of the verbs in the box.

finish – leave – study – not read – close – not use

1. I realised that I _____ my history book at home.

2. _____ the shop _____ by the time you got there?

3. When I _____ the book, I returned it to the library.

4. Nina _____ a computer until her dad bought one.

5. How much _____ they _____ before the exam?

6. I _____ the play before I went to the theatre to see it.