Complete these sentences using Past Perfect.
1. She went to the supermarket, but she had forgotten (forget) her money.
2. When he got to the station, the train ____________ (leave).
3. In the middle of the film he remembered he ___________ (see) it before.
4. Nadia said she was very sorry for what she _____________ (do).
5. It wasn’t surprising that she was tired: she ___________ (not/sleep) for two days.
6. The road was blocked because a lorry ______________ (break down).
7. My mother felt very nervous on the plane because she _____________ (not/fly) before.
8. When the police arrived to arrest him, Thompson ______________(leave).