She had already finished her homework before her friends arrived.By the time he woke up, she had already left for work.They had watched the movie before they realized they had the wrong DVD.The plane had already taken off before I reached the airport.I had eaten lunch before I went to the grocery store.By the time they arrived at the party, the cake had already been eaten.She had already bought a new dress before she found out about the dress code.Before he started his new job, he had already completed a training course.By the time he received the invitation, the party had already taken place.They had finished the project before the deadline.She had studied for the exam for weeks before taking it.The children had gone to bed before their parents returned home.He had never traveled outside of the country before his trip to Europe.By the time he realized his mistake, the damage had already been done.They had visited the museum multiple times before they became members.