Past Perfect and Simple Past

1. By the time I had arrivedarrived (arrive) at the party, everyone had eatenate (eat) all the pizza.

2. She finishedhad finished (finish) her presentation before it had startedstarted (start) raining.

3. By the time I had gotgot (get) to the movie theater, the film startedhad started (start).

4. Before I wenthad gone (go) to bed, I had readread (read) three chapters of the book.

5. When I had arrivedarrived (arrive) at the airport, my flight had already departedalready departed (already, depart).