Look at the pictures and complete the sentences. Use the correct form of the past perfect continuous.

1. She was tired because (run).

2. They were hot because (dance),

3. The garden was flooded because (it / ram / all night).

4. Did they crash because (drive / too fast)?

5. When I arrived, (they / wait / for over half an hour).

6. When I got there, (they / not / wait / long).