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Упр.4. Вставьте глагол to be в соответствующем времени, лице и числе:
1. I ____ a first-year student. 2. Alex ____ absent today. He ____ ill. 3. At the University we ____ usually busy till 4.30 p.m. 4. ____ you a doctor? 5. It ____ Wednesday today. 6. She ____ a doctor in 6 years. 7. I ____ a medical student. 8. I ____ a therapist next year. 9. Yesterday she ____ in the hospital. 10. They ____ in London last year, but now they ____ in Paris. 11. ____ it cold or warm today? 12. We ____ at the lecture in Chemistry. 13. It ____ Thursday yesterday.