Вместо пропусков поставьте нужную форму глагола be. Предложения переведите.
Вариант 1

1. Mr. Black _____ a professor of mathematics.
2. I _____ a student. I _____ a schoolboy only three month ago.
3. All the students _____ present today.
4. There _____ many things on the table.
5. Mr. Black_____ in London yesterday.
6. In 1995 I _____ a student at the University.
7. The books _____ not interesting.