Составьте 10 предложений в Present Perfect

They have just left for London. I have already done my homework. She has bought a new computer today. They haven't come home from school yet. Mary has already read this book. I have just phoned my grandmother. We haven't translated the text yet, it is too long and difficult. I have already found information for my report in history. He has already walked his dog. Have you already seen this film? They recently moved to a new flat.