Упражнение 3. Вставьте нужную форму глагола BE (am, is, are). 1. My friend _______ reading a book. 2. I _______ drinking tea. 3. They _______ making noise. 4. He _______ looking through the window. 5. She _______ helping about the house. 6. We _______ watching TV. 7. Granny _______ cooking dinner. 8. The birds _______ swimming in the lake. 9. The dog _______ sitting at the door. 10. It _______ looking at me.