Question

Trzeba użyć czasu Past Perfect lub Past Simple.

1.The guests left the party. Then, we arrived. (already ... when)
2. Sam ate his lunch. Then, his mum came home. (by the time)
3. William did his homework. Later he played computer games. (before)

Answer 1

1. When we arrived, the guest had already left the party.
2. By the time his mum came home, Sam had eaten his lunch.
3. Before William played computer games, he had done his homework.