●Complete the sentences. Use the past perfect form of the verbs.
1 When I tried to phone them, nobody answered. They __all__ (go) swimming.
2 He __ (change) so much that I almost didn't know who was when I saw him last night.
3 She couldn't phone me because she__ (lose) her mobile.
4 Somebody__ (steal) John's car, so he was very angry.
5 Claire had no idea I was coming to see her. Her mum __ (forget) to tell her.
6 You arrived too late. They__ already__ (leave). 7 Her mother__ (not give) her any money, so she couldn't buy the tickets.
8 __they already__ (return) from their holiday when you got to their house?​