Odpowiedź :
Wyjaśnienie:
1. Before we entered the school, the lesson had already begun.
2. We were swimming in the sea when a shark attacked us.
3. We had a big problem finding a room at a hotel because we hadn't made any reservations.
Wyjaśnienie:
1. Before we entered the school, the lesson had already begun.
2. We were swimming in the sea when a shark attacked us.
3. We had a big problem finding a room at a hotel because we hadn't made any reservations.