Упражнение 1. Заполните пропуски глаголом to be в нужной форме и переведите предложения на русский язык.
а) 1. The book …written by Tolstoy.
2. My friend … asked at the lesson.
3. …the houses reconstructed in our town.
б) 1. Our laboratory …proved with all necessary equipment next month.
2. We…offered an interesting work tomorrow.