Change the sentences and translate new ones (образуйте предложение и переведите его) 1. the delegation has arrived, (by last sunday) 2. the pupils have read this book, (by last week) 3. ann has done her lessons, (by the time i came) 4. they have finished this work, (by 5 o’clock yesterday) 5. we haven’t yet seen our teacher (before the bell rang)