Выберите правильную форму глагола "to be". 1.i … a student. 2. he … at the institute now. 3. we … very busy today. 4. my name … nick. 5. my mother … a teacher. 6. they … workers. 7. you … very clever. 8. how old … you? 9. nina's father and mother … pensioners. 10. alex … fond of singing and drawing.