1. Our next door neighbor washes his car every Sunday.
2. Last summer I went to the beach almost every day.
3. “Oh, it belongs to me. Thank you.”
4. We talked when somebody knocked at the door.
5. When we got to the airport, I realized I leave my passport at you home.
ЗЫ: не уверен в правильности, возможно, где-то я ошибся(в 4 и 5 предложении?)