Заполните пропуски формами глагола to be. 1. This .....my bag

Заполните пропуски формами глагола to be. 1. This .....my bag and that .....her bag. 2. These ..... my brothers pencils. 3. Where .... you?- I .... in the kitchen. 4. What .....you doing there?- I ..... washing the dishes now. 5. I and my sister ...... in London last summer. 6. We ...... at the lecture yesterday. 7. The lecture .....interesting and there .....many people present. 8. Her grandparents ......very hospitable and kind. 9. My cat .... rather lazy. 10. My brother ....an expert on geology.