Match the Past Perfect explanations below with the sentences.

Write one number in each gap.

She didn't like the film because she hadn't read the book. [ ]

At the train station, we realised that we left our passports at home. [ ]

It was the most beautiful trip I had ever taken. [ ]

If you had come on Sunday, you would have seen her. [ ]

1. An action happened before another action in the past.

2. A description of the reason.

3. A description of an experience in the past.

4. An unreal situation in the past.